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13531 discussions

Gig Enet and Filer NFS problems
by Darragh, Stephen J 30 Sep '02

30 Sep '02

Hi, We have some F820s running Gig E (fibre, not copper) and are starting to get complaints about nfs performance. We have taken all the defaults for the network setting and just wanted to do a quick sanity check with the group to see if there are known issues. Thanks Steve Darragh

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RE: UNIX /var/mail on NetApp?
by Mike Sphar 30 Sep '02

30 Sep '02

This is a good point. I know Solaris does this, possibly others. The default Sendmail configuration on at least some versions of Solaris will automatically try to use the server /var/mail is mounted from as the mailhost for transferring outgoing mail. You should be able to override this in the sendmail.cf. -- Mike Sphar - Sr Systems Administrator Remedy Corporation -----Original Message----- From: devnull(a)adc.idt.com [mailto:devnull@adc.idt.com] Sent: Monday, September 30, 2002 1:04 PM To: toasters(a)mathworks.com Subject: Re: UNIX /var/mail on NetApp? here is what we do in /etc/auto_direct /var/mail -rw,hard,actimeo=0 filer:/vol/vol2/mail intr, hard are defaults. You might want to add noac. This is not the right way of doing things(over nfs that is). If your people complain about not getting mail on the client, do a /usr/lib/sendmail -v you(a)yourdomain.com You might see it trying to make a port 25 connection to your filer :) Again, that is not a NetApp thing, more of a /var/mail over NFS thing. Thanks. > David, > > we store /var/mail on NetApp filers (F840c, F760c) at several sites > with diffeent size (12 to 200 Sun Solaris 2.5.1/7/8/9 clients) without > problems. > > we automount /var/mail in /etc/auto_direct with these options: > > /var/mail -rw,hard,intr,noac,actimeo=0 filer:/vol/vol1/qtree04/mail > > we do use POP3, but most clients access the mailbox via NFS directly. > > Hope this helps > > --pwo >

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UNIX /var/mail on NetApp?
by David Lee 30 Sep '02

30 Sep '02

We run a fairly traditional UNIX email service: delivery to a Solaris-8 machine with sendmail, hosting the "/var/mail" mailstore. The operations on the mailstore files themselves are entirely from the Washington suite: POP/IMAP server (clients) and their "tmail" (sendmail 'Mlocal' delivery). There is no direct NFS access to the mailstore. One of the pieces of received wisdom is that the "/var/mail" mailstore should not be accessed by NFS, as NFS is (they would say) notoriously problematical. I'm inclined to believe this. Nevertheless, we are toying with the idea of putting "/var/mail" onto a NetApp thereby, of course, introducing NFS and its locking into the equation. Naturally, we are rather wary of doing this. But, if done, its major advantage for us would be in allowing us to set up an expandable "farm" of modest-size IMAP/POP machines, rather than having to run it all on one major machine. Anyone got any thoughts and/or experiences with UNIX /var/mail on NetApp? -- : David Lee I.T. Service : : Systems Programmer Computer Centre : : University of Durham : : http://www.dur.ac.uk/t.d.lee/ South Road : : Durham : : Phone: +44 191 374 2882 U.K. :

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Re: UNIX /var/mail on NetApp?
by Rune Bakken 30 Sep '02

30 Sep '02

David Lee <t.d.lee(a)durham.ac.uk> writes: > Anyone got any thoughts and/or experiences with UNIX /var/mail on NetApp? My company is hosting a fairly large mail-system with several Solaris based mailservers (pop/imap/smtp) all served from a single F880 with close to 3TB of raw disks with no major systemic problems at least regarding usage of NFS. The words saying that NFS is problematic, is at best history, as I have been in companies using NetApp's for mail-store for the past 7 years or so. It may involve tuning nfs on the client side, we have not done much on the netapp side - and ensuring that the network is able to handle the expected traffic. >>>>>>>>>>>>>>>>>>.rune -- Rune Bakken Senior System Administrator Telenor Business Solutions (Nextra), Communications/IP-Services Ph: +47 22 77 03 93

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help with mrtg for the filer
by Darragh, Stephen J 30 Sep '02

30 Sep '02

Sorry about the last message. I got the filer-mrtg to build and am collecting some data. VERY nice tool. I was wondering if there ware any know issues/bugs. Thanks Stephen Darragh

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RE: large data move
by Toal, Dave 30 Sep '02

30 Sep '02

Geoff, Easiest and fastest is to set up crossover cables and use snapmirror. If you have multiple interfaces free (a quad card maybe) interfaces can be trunked with vif; with a single crossover line I saw a vol with 185 gig of data mirrored in about 6 1/2 hours. Syntax is dead easy, source -> destination; waldorf is the source filer here. netapp-demo> snapmirror initialize -S waldorf:domain2 netapp-demo:domain2 netapp-demo> rdfile /etc/snapmirror.allow waldorf netapp-demo> -- Dave Toal Unix Mostly Thomson & Thomson N. Quincy, MA -----Original Message----- From: Geoff Hardin To: toasters Sent: 9/30/02 9:26 AM Subject: large data move I am contemplating moving an entire filer from 18 GB drives (many, many problems) to 36 GB drives; the reasons are an entirely separate posting. My question is, what is the fastest, most reliable way to move the data? This past weekend, I moved about 100 GB in four different qtrees with ndmpcopy, and each qtree averaged about 40 hours to move (between 34 to 44 hours). I am looking at moving three times that amount of data on this other filer. I seem to recall using snapmirror or snaprestore when we migrated from an F630 to our F760C, but that was quite some time ago. I was wondering if anyone had stories, recommendations, pointers on what is the best method to transfer data. Thanks to all in advance! Geoff Hardin geoff.hardin(a)dalsemi.com Gun control is a steady hand!

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large data move
by Geoff Hardin 30 Sep '02

30 Sep '02

I am contemplating moving an entire filer from 18 GB drives (many, many problems) to 36 GB drives; the reasons are an entirely separate posting. My question is, what is the fastest, most reliable way to move the data? This past weekend, I moved about 100 GB in four different qtrees with ndmpcopy, and each qtree averaged about 40 hours to move (between 34 to 44 hours). I am looking at moving three times that amount of data on this other filer. I seem to recall using snapmirror or snaprestore when we migrated from an F630 to our F760C, but that was quite some time ago. I was wondering if anyone had stories, recommendations, pointers on what is the best method to transfer data. Thanks to all in advance! Geoff Hardin geoff.hardin(a)dalsemi.com Gun control is a steady hand!

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looking for disks
by Bertrand HUTIN 30 Sep '02

30 Sep '02

I have an F740 filer and want to increase the capacity. I'm looking for 34Gb@520 bytes/sect disks for a FC9 shelf, part # X231 ___________________________________________________________ Do You Yahoo!? -- Une adresse @yahoo.fr gratuite et en français ! Yahoo! Mail : http://fr.mail.yahoo.com

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Migrating Volumes
by Clark Turner 27 Sep '02

27 Sep '02

Can someone suggest a third party app that can safely move several large Netware volumes over? Thanks CT ********************************** Clark Turner Blue Cross Blue Shield of AZ IS Dept. 602-864-5656 cturner(a)phx1.bcbsaz.com ***********************************

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RE: Sun Solaris 8 optimal performance with F880
by Rainchik, Aleksandr (MED) 26 Sep '02

26 Sep '02

As far as I know, that 32k/UDP block size problem is specific to Cisco switches only. We had such a problem when our swithces were upgraded from 55xx model to 65xx. Huge performance problems with 32k blocks, had to change it to 8k. Try to use crossover cable and connect same client directly to the filer. You'll be surprised how well NFS with 32k/UDP packets works... -- a.r. -----Original Message----- From: Brian Long [mailto:brilong@cisco.com] Sent: Thursday, September 19, 2002 8:48 PM To: Deepak Soneji Cc: toasters(a)mathworks.com Subject: Re: Sun Solaris 8 optimal performance with F880 UDP and 32K transfers don't mix. Reduce to 8K transfers (nfs.udp.xfersize 8192) or change to TCP, the preferred method in which to use NFS. /Brian/ > Toasters > > Configuration : Sun E6000 server running Solaris 8 latest patch level > Filer : F880 > Cisco Switch 6509(Flowcontrol turned on) > > > We have recently bought 2- F880 filers and we are in the implementation phases. The weird > performance results we are getting with following system settings and mount parameters. > The output from "sysstat 1" on filer, shows writes 35 MBPS but reads just very slow > or not even generate any traffic. Here are the settings > > ndd -set /dev/udp udp_recv_hiwat 65535 > ndd -set /dev/udp udp_xmit_hiwat 65535 > ndd -set /dev/tcp tcp_recv_hiwat 65535 > ndd -set /dev/tcp tcp_xmit_hiwat 65535 > ndd -set /dev/ge instance 1 > ndd -set /dev/ge adv_pauseTX 1 > ndd -set /dev/ge adv_pauseRX 1 > ndd -set /dev/ge adv_1000autoneg_cap 0 > ndd -set /dev/ge adv_1000fdx_cap 1 > > set sq_max_size = 30 > set nstrpush = 90 > set ncsize 8000 > set nfs:nfs3_max_threads = 24 > set nfs:nfs3_nra =10 > set nfs:nfs_max_threads = 24 > set nfs:nfs_nra = 10 > > Mount file system : > > mount -o rw,bg,hard,intr,proto=udp,vers=3,rsize=32768,wsize=32768 filer01:/vol/test /test > > Test method > > dd if=/dev/zero of=/test/foo bs=32k count=50000 > > > I have tried to search some documents on now site for the optimal performance but I could not > find any optimal numbers which I should try to achieve. > Why reads are chocking up ? > anyone has any proven configuration which works optimally ? > > Thanks in advance for your inputs and thoughts. > > Regards > > -Deepak Soneji > Flextronics International > > -- Brian Long | | | Americas IT Hosting Sys Admin | .|||. .|||. Phone: (919) 392-7363 | ..:|||||||:...:|||||||:.. Pager: (888) 651-2015 | C i s c o S y s t e m s

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RE: Finding who has files open (in use)
by Bui, Marcus 26 Sep '02

26 Sep '02

Paul, Try Hyena from SystemTools http://www.systemtools.com/index.html. It's very useful, especially in a Windows environment. It can list all files open and can sort by filename or LAN ID. You can disconnect the user/multiple users or send them a msg. Also, can export to CSV file. This utility can do a lot more. cheers, Marcus Bui -----Original Message----- From: Maglinger, Paul [mailto:PMAGLINGER@scvl.com] Sent: Thursday, September 26, 2002 3:24 PM To: 'NetApps list server' Subject: Finding who has files open (in use) Greetings toasters! Looking for a way to list files that are in use on the filer and who is using them. I want an output similiar to what you would see if you went into Windows Server Manager, selected the server and clicked on the "In Use" button, but I want something more user friendly than scrolling down looking for the file name. Specifically, we are having problems with users leaving files open, which prevents us from writing over them. I'm looking for a way to quickly track down who has this file open so they can be flogged, keel-hauled, then drawn and quartered. Your thoughts, please? Remember, you are unique... just like everyone else! Paul Maglinger, A+, CA, CCA, CET, MCSE Systems Administrator Shoe Carnival Inc. (812)867-4674 pmaglinger(a)scvl.com

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RE: Finding who has files open (in use)
by Merkin, David S 26 Sep '02

26 Sep '02

There is command line utility that works from an NT Workstation. It shows the open files and it closes the files if you want. It also shows the file id and user who has it opened. It is called NETFILE.EXE. I am not sure if it shareware but you can try to e-mail brian(a)keene.net for a copy. Thanks David -----Original Message----- From: Maglinger, Paul [mailto:PMAGLINGER@scvl.com] Sent: Thursday, September 26, 2002 4:24 PM To: 'NetApps list server' Subject: Finding who has files open (in use) Greetings toasters! Looking for a way to list files that are in use on the filer and who is using them. I want an output similiar to what you would see if you went into Windows Server Manager, selected the server and clicked on the "In Use" button, but I want something more user friendly than scrolling down looking for the file name. Specifically, we are having problems with users leaving files open, which prevents us from writing over them. I'm looking for a way to quickly track down who has this file open so they can be flogged, keel-hauled, then drawn and quartered. Your thoughts, please? Remember, you are unique... just like everyone else! Paul Maglinger, A+, CA, CCA, CET, MCSE Systems Administrator Shoe Carnival Inc. (812)867-4674 pmaglinger(a)scvl.com

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Share Connection State after Renaming the Directory
by Merkin, David S 26 Sep '02

26 Sep '02

Hi NetApp Toasters: I am having an issue with a Share Connection that still stays connected after renaming the subdirectory that the share is using. For example if c:\vol\vol1\test is shared out as sharetest on filer1 and the test directory is renamed to c:\vol\vol1\test.old the share is still accessible. You should get an error that the share is not accessible. The only way around this is to stop the share and recreate it. In fact I thought it might be the workstation cache so I reboot the workstation and the same thing happens. I also tried this on several workstation OS's - NT 4.0, XP Prof. and Win2K but they all have no problem connecting. In Windows NT you get an Error Message that the share is not accessible if you rename the directory. If anyone has any information that would be great Thanks David

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RE: Finding who has files open (in use)
by Mike Sphar 26 Sep '02

26 Sep '02

What I do when I get occasional reports of locked files is use a combination of "cifs sessions *" and "lock_dump -f". The cifs sessions command often shows files held open, and for some occasions where it doesn't the lock_dump command always has. Between those two commands I've always been able to identify the computer and user that has the file open. It's possible this information doesn't include nfs locks. I've never had a case of an NFS user interfering with other access to the file so it's never come up. (NFS locking is for the most part not enforced.) The output isn't pretty, but it's readable, and probably very parseable by something like perl if someone had a mind to do so. -- Mike Sphar - Sr Systems Administrator - Remedy Corporation -----Original Message----- From: Maglinger, Paul [mailto:PMAGLINGER@scvl.com] Sent: Thursday, September 26, 2002 3:24 PM To: 'NetApps list server' Subject: Finding who has files open (in use) Greetings toasters! Looking for a way to list files that are in use on the filer and who is using them. I want an output similiar to what you would see if you went into Windows Server Manager, selected the server and clicked on the "In Use" button, but I want something more user friendly than scrolling down looking for the file name. Specifically, we are having problems with users leaving files open, which prevents us from writing over them. I'm looking for a way to quickly track down who has this file open so they can be flogged, keel-hauled, then drawn and quartered. Your thoughts, please? Remember, you are unique... just like everyone else! Paul Maglinger, A+, CA, CCA, CET, MCSE Systems Administrator Shoe Carnival Inc. (812)867-4674 pmaglinger(a)scvl.com

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Finding who has files open (in use)
by Maglinger, Paul 26 Sep '02

26 Sep '02

Greetings toasters! Looking for a way to list files that are in use on the filer and who is using them. I want an output similiar to what you would see if you went into Windows Server Manager, selected the server and clicked on the "In Use" button, but I want something more user friendly than scrolling down looking for the file name. Specifically, we are having problems with users leaving files open, which prevents us from writing over them. I'm looking for a way to quickly track down who has this file open so they can be flogged, keel-hauled, then drawn and quartered. Your thoughts, please? Remember, you are unique... just like everyone else! Paul Maglinger, A+, CA, CCA, CET, MCSE Systems Administrator Shoe Carnival Inc. (812)867-4674 pmaglinger(a)scvl.com

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LED on drives flashes from green to red
by Daniel Finn 26 Sep '02

26 Sep '02

I'm just wondering if this is normal and why it happens. I've recently been put in charge of admin'ing several F760s and am just starting to learm my way around them. I've noticed that some times the green LED will flash red for just a second and then back to green. This is on drives that are in use and getting quite a bit of I/O. Thanks Dan

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RE: NDMP
by Mike Ball 26 Sep '02

26 Sep '02

The only issue I have ever ran into is with Networker. If you need to a restore for more than 1024 files you can not use DAR. The work around is to turn off DAR, rerun the restore and it works fine. Just keep in mind the restore will be slow because you will have to walk through the tapes sequentially until the files are fond. What kind of problems are you having? I have not had any major issues with either Networker NDMP or Netbackup NDMP. Both work well, although Netbackup does not have DAR capability yet. -----Original Message----- From: grey jolly [mailto:greyjolly@yahoo.com] Sent: Tuesday, September 24, 2002 11:44 AM To: toasters(a)mathworks.com Subject: NDMP Most of the folks we deal with have a lot of problems with NDMP. It would certainly be helpful if you could provide the list with some of your tricks to make NDMP work consistently. --- Mike Ball <MBall(a)datalink.com> wrote: > Go with NDMP on Legato. As others stated, NDMP and > Legato work very well. I > have setup a few environments with Legato Networker > and NDMP via Netapp. The > nice thing about NDMP is you directly dump off the > Netapp to tape which is > very quick. It will push LTO and SDLT tape drives to > the full performance > capabilities. In addition, the CPU overhead > required to do a NDMP backup vs > over NFS is much lower on the Netapp. Keep in mind > though that the tape > drives dedicated to the Netapp for NDMP can not be > shared by other non > Netapp Legato clients/storage nodes/servers (can be > shared by other Netapps > though). > Mike > > > -----Original Message----- > From: devnull(a)adc.idt.com > [mailto:devnull@adc.idt.com] > Sent: Thursday, September 19, 2002 9:57 AM > To: Toasters (E-mail) > Subject: Legato Backups. > > > Dear Toasters, > > I was wondering if any of you guys were using Legato > for backing up your > NetApps. I currently have 2 filers that i am backing > up to a Legato server > running Solaris 2.8 over NFS. I mount the NetApp > volumes onto the legato > server and then backup those mount points. > > I am not sure this is the best thing to do in terms > of performance. > > Is there an alternate, easier solution. > > Thanks, > > /dev/null > > devnull(a)adc.idt.com __________________________________________________ Do you Yahoo!? New DSL Internet Access from SBC & Yahoo! http://sbc.yahoo.com

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RE: ndmpcopy question
by Chitre, Amol 26 Sep '02

26 Sep '02

Hello Prem, Yes, ndmpcopy can be used for data migration, and it works with full volumes, qtrees and even plain directories. But no single file ndmpcopies yet. Regardless of the granularity of your dataset to be copied, a limited number of incrementals are supported as well, so you will have to check the man page along with the ndmpcopy utility you are using for this. Hope that helps, Amol. -----Original Message----- From: Premanshu Jain [mailto:Premanshu.Jain@synopsys.com] Sent: Tuesday, September 24, 2002 5:17 PM To: toasters(a)mathworks.com Subject: ndmpcopy question I wish to copy a whole volume from naca:/source to nacb:/dest . Can I copy a qtree nacC:/vol/vol0/qtree to nacb:/dest/qtree..? Will the ndmpcopy be able to do the incremental later, if the case one is possible. prem

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Searchable archives
by Timothy Cook 25 Sep '02

25 Sep '02

Is there a searchable archives for the Toasters board? I'ld really rather do some research on my own before I ask somebosy else to solve my problems! +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ This electronic mail transmission contains information from Joy Mining Machinery which is confidential, and is intended only for the use of the proper addressee. If you are not the intended recipient, please notify us immediately at the return address on this transmission, or by telephone at (724) 779-4500, and delete this message and any attachments from your system. Unauthorized use, copying, disclosing, distributing, or taking any action in reliance on the contents of this transmission is strictly prohibited and may be unlawful. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

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Looking for parts
by Maglinger, Paul 25 Sep '02

25 Sep '02

Looking for the following: (7) 32GB drives (part number X225B). 108-01471 shelf for F740. Needs to come with 2 power supplies, a fiber channel adapter (with two ports), and a 2 meter cable. Paul Maglinger, A+, CA, CCA, CET, MCSE Systems Administrator Shoe Carnival Inc. (812)867-4674 pmaglinger(a)scvl.com

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Re: SUN Solaris Performance Tools
by mds＠gbnet.net 25 Sep '02

25 Sep '02

BGS Best1's data collector has now apparently been combined with BMC Patrol so that (despite my personal dislike for Patrol) it might be a goer. TBYB. Alternatively simply using the various *stat's with some noddy bits of perl or shell-script will give useful date/time-stamped tables which you can then graph using spreadsheet software or gnuplot, and are quite amenable to importing into databases or packages like SAS. RRDTool is also a likely candidate for the kind of performance-tracking trending and capacity planning that you might want to do. RRDTool doesn't collect data though, just helps you work with time-based data. -- -Mark ... an Englishman in London ...

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RE: Moving data from NT to NetApp painfully slow
by Parsons Alastair 25 Sep '02

25 Sep '02

I have to concur with the below. We have moved Terabytes of Data using Robocopy with no problems at all. -----Original Message----- From: Seth Moskowitz [mailto:sethmoskowitz@hotmail.com] Sent: 25 September 2002 16:26 To: brilong(a)cisco.com; Bernhard.Friedrich(a)med.uni-heidelberg.de Cc: toasters(a)mathworks.com Subject: Re: Moving data from NT to NetApp painfully slow I disagree, we have copied numerous Terabytes of Data from NT/Novell servers to Filers using Robocopy. I am not saying it is the best solution but the best we found with keeping ACLs in place. >From: Brian Long <brilong(a)cisco.com> >To: "Friedrich, Bernhard" <Bernhard.Friedrich(a)med.uni-heidelberg.de> >CC: "'toasters(a)mathworks.com'" <toasters(a)mathworks.com> >Subject: Re: Moving data from NT to NetApp painfully slow >Date: Fri, 20 Sep 2002 11:53:57 -0400 (EDT) > >A coworker of mine states that running robocopy on a multi-CPU box copying >data from NTFS partitions with compression turned on will never finish. >There is a utility called imagecfg.exe that allows you to create a copy of >robocopy.exe which assigns it to a given CPU and does not allow it to >change between CPUs. > >If you want a copy of this utility, contact me directly. If you're not >using NTFS with compression enabled, disregard this :) > >/Brian/ > > > > Hi Toasters, > > > > we're in the process of consolidating NT file services on a NetApp >Filer. We > > have an F810 where we want to store all our user's data which is now >spread > > across multiple servers, some of which are close to being maxed out. We >now > > have the problem of moving all the data while we're still servicing our > > users - we're on 24/7 here. We found that copying the data to the filer >is > > painfully slow; we're suspecting that NT ACLs might be the culprit. >We've > > tried robocopy, secure copy and xxcopy to no avail - moving a small part >of > > the total data took 15 hours. Anybody out there willing to share their > > experiences with moving several hundreds of GB across the network? We >need > > to keep NT permissions, obviously. On the mailing list I saw references >to > > Fastlane and Aelita's SCW - any experience with those or other 3rd party > > products? > > > > Greetings and thanks in advance > > > > Bernhard > > > > -- > > Bernhard Friedrich > > ZIM Uniklinikum Heidelberg > > Unix/NT administration > > > >-- > Brian Long | | | > Americas IT Hosting Sys Admin | .|||. .|||. > Phone: (919) 392-7363 | ..:|||||||:...:|||||||:.. > Pager: (888) 651-2015 | C i s c o S y s t e m s > _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com ========================================================= This electronic message contains information from the mmO2 plc Group which may be privileged or confidential. The information is intended to be for the use of the individual(s) or entity named above. If you are not the intended recipient be aware that any disclosure, copying, distribution or use of the contents of this information is prohibited. If you have received this electronic message in error, please notify us by telephone or email (to the numbers or address above) immediately. =========================================================

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Re: Moving data from NT to NetApp painfully slow
by Seth Moskowitz 25 Sep '02

25 Sep '02

I disagree, we have copied numerous Terabytes of Data from NT/Novell servers to Filers using Robocopy. I am not saying it is the best solution but the best we found with keeping ACLs in place. >From: Brian Long <brilong(a)cisco.com> >To: "Friedrich, Bernhard" <Bernhard.Friedrich(a)med.uni-heidelberg.de> >CC: "'toasters(a)mathworks.com'" <toasters(a)mathworks.com> >Subject: Re: Moving data from NT to NetApp painfully slow >Date: Fri, 20 Sep 2002 11:53:57 -0400 (EDT) > >A coworker of mine states that running robocopy on a multi-CPU box copying >data from NTFS partitions with compression turned on will never finish. >There is a utility called imagecfg.exe that allows you to create a copy of >robocopy.exe which assigns it to a given CPU and does not allow it to >change between CPUs. > >If you want a copy of this utility, contact me directly. If you're not >using NTFS with compression enabled, disregard this :) > >/Brian/ > > > > Hi Toasters, > > > > we're in the process of consolidating NT file services on a NetApp >Filer. We > > have an F810 where we want to store all our user's data which is now >spread > > across multiple servers, some of which are close to being maxed out. We >now > > have the problem of moving all the data while we're still servicing our > > users - we're on 24/7 here. We found that copying the data to the filer >is > > painfully slow; we're suspecting that NT ACLs might be the culprit. >We've > > tried robocopy, secure copy and xxcopy to no avail - moving a small part >of > > the total data took 15 hours. Anybody out there willing to share their > > experiences with moving several hundreds of GB across the network? We >need > > to keep NT permissions, obviously. On the mailing list I saw references >to > > Fastlane and Aelita's SCW - any experience with those or other 3rd party > > products? > > > > Greetings and thanks in advance > > > > Bernhard > > > > -- > > Bernhard Friedrich > > ZIM Uniklinikum Heidelberg > > Unix/NT administration > > > >-- > Brian Long | | | > Americas IT Hosting Sys Admin | .|||. .|||. > Phone: (919) 392-7363 | ..:|||||||:...:|||||||:.. > Pager: (888) 651-2015 | C i s c o S y s t e m s > _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com

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ndmpcopy question
by Premanshu Jain 25 Sep '02

25 Sep '02

I wish to copy a whole volume from naca:/source to nacb:/dest . Can I copy a qtree nacC:/vol/vol0/qtree to nacb:/dest/qtree..? Will the ndmpcopy be able to do the incremental later, if the case one is possible. prem

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RE: Legato Backups.
by Mike Ball 24 Sep '02

24 Sep '02

Go with NDMP on Legato. As others stated, NDMP and Legato work very well. I have setup a few environments with Legato Networker and NDMP via Netapp. The nice thing about NDMP is you directly dump off the Netapp to tape which is very quick. It will push LTO and SDLT tape drives to the full performance capabilities. In addition, the CPU overhead required to do a NDMP backup vs over NFS is much lower on the Netapp. Keep in mind though that the tape drives dedicated to the Netapp for NDMP can not be shared by other non Netapp Legato clients/storage nodes/servers (can be shared by other Netapps though). Mike -----Original Message----- From: devnull(a)adc.idt.com [mailto:devnull@adc.idt.com] Sent: Thursday, September 19, 2002 9:57 AM To: Toasters (E-mail) Subject: Legato Backups. Dear Toasters, I was wondering if any of you guys were using Legato for backing up your NetApps. I currently have 2 filers that i am backing up to a Legato server running Solaris 2.8 over NFS. I mount the NetApp volumes onto the legato server and then backup those mount points. I am not sure this is the best thing to do in terms of performance. Is there an alternate, easier solution. Thanks, /dev/null devnull(a)adc.idt.com

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