toasters

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13514 discussions

moving disks from one shelf to another
by Josef Radinger 07 Aug '07

07 Aug '07

Hi, We have the following situation: A 3020c with 3 FC shelves (with 144G disks), and 2 SATA shelves. one head has the FC ones, the other ownes the SATA ones. For some reason 2 of the FC shelves are only half-filled and we would like to buy larger FC disks. *) is it possible to intermix different sized disks in one aggregate? (i think so) *) is it possible to intermix different sized disks in one shelf? eg. 7 144G disks and 7 larger disks in one shelf. i dont think so, without loosing the extra space. at least in the past this was not possible with older versions of ontap, if i read the older posts correctly. *) is it possible to move 7 disks from one shelf to the other half-filled shelf without data loss and interruption? then i would have 2 full shelves and one empty shelf and could ad the new disks to that empty shelf (and the same aggregate). yours josef -- MfG Josef Radinger it-services Medizinische Universitaet Innsbruck

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rsh problem
by David McWilliams 03 Aug '07

03 Aug '07

I'm trying to configure rsh access for some remote scripts I'm writing and I getting the following; Permission denied to rsh request from root at host 10.4.27.17 IP address 10.4.27.17 I've got the following options set; rsh.access host=10.4.27.17 rsh.enable on trusted.hosts * Any ideas anyone? -- Sláinte, David Checkout the, sometimes updated, McWilliams family website @ http://davidmcw.tripod.com Get a safer, faster, better web browser @ http://www.mozilla.org/products/firefox/

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Using Subinacl for CIFS ACL changes
by Jimmy Corncrake 03 Aug '07

03 Aug '07

Hi, We are attempting to make alterations to our file and directory ACLs using the microsoft utility Subinacl.exe. All attempts to use this utility under an account which has anything less than Administrative status on the Filer fail. For example running the following command subinacl /subdirectories \\sharesfiler\adm$ <file://sharesfiler/adm$> /display - with an account which has Power User & Backup Operator group membership on the Filer returns an error message - CreateFile Error : 1314 A required privilege is not held by the client. The account the command is being run under has both Full Control on the share and the ACL. If we use other MS utilities to perform the same function such as cacls, xcalcs or the windows GUI we can view and alter all ACLs without the need to grant the account Administative status. This implies that the access permissions are sufficient and therefore there is something subinacl is doing that is different to other tools designed for the same purpose. Upgrading the account priveleges to Administrator overcomes this problem but this is not an option except in our test environment. This behaviour is consistant on Ontap 6.5.7, 7.0.5, 7.0.6 and 7.2.2 implying that its not a release bug. Has anyone else come across this behaviour before or have any idea what subinacl is doing that the other tools do not? Your assistance will be appreciated. rgds, Oisin

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A-SIS (NetApp De-Duplication)
by Peter W. Osel 01 Aug '07

01 Aug '07

Hello *, we are in the process of consolidating several NetApp filers and NearStore systems onto a single FAS30x0HA system. The system's main function is to serve primary data (part from FCAL disks, part from SATA disks), it's secondary function is to act as the NearStore system for a second site, storing the copy of the other site's data on SATA disks. Now we would like to try A-SIS to reduce the required physical storage. It looks as if in order to add A-SIS (a_sis license), I also need to install the NearStore license. Now my concern is, that by giving the system a NearStore personality I might impact the system's primary role - serving primary storage data to users. Has anyone experience with how a system changes when the NearStore licenses is enabled? Any negative impact for serving data to users? Is the NearStore personality activated by installing the nearstore license, or could we install the nearstore and a_sis license, but keep the nearstore personality deactivated? For data that we volume SnapMirror, would we need an A-SIS license on both sides - source and target system? Will the volume SnapMirror transfer less data (assuming that A-SIS de-dupe of data saved some of the required data blocks)? yes?!) Any other experience (good or bad) or concerns when using A-SIS? Any reason to not use it on all (home directory type data) volumes? Any limitation encountered? Any experience how much savings can be achieved (e.g. for home directories volumes, volume storing tons of application software packages)? Cheers --pwo -- Peter W. Osel eMail: pwo(a)Qimonda.COM Principal Development Systems Phone: +1.919.677.6333 Qimonda North America Corp. Cell : +1.408.348.6735 3000 CentreGreen Way eFax : +1.804.952.3905 Cary, NC 27513-5760, USA www : http://pwo.de/

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Re: A-SIS (NetApp De-Duplication)
by Reinoud Reynders 28 Jul '07

28 Jul '07

Hi Roger, Also a posible setup: the source is on a regular FAS system without nearstore personality and asis, but for DR you use qtree snapmirror to a nearstore. Your can turn on asis only on the destination. . You don't save space on the source, but you save a lot on the destination site. Greetings, Reinoud ----- Original Message ----- From: owner-toasters(a)mathworks.com <owner-toasters(a)mathworks.com> To: Sels Roger <roger.sels(a)uptime.be> Cc: toasters(a)mathworks.com <toasters(a)mathworks.com> Sent: Sat Jul 28 12:14:38 2007 Subject: Re: A-SIS (NetApp De-Duplication) On Jul 28, 2007, at 2:17 AM, Sels Roger wrote: > > Does this mean that the amount of replicated data is also reduced when > you SM a A-SIS source volume to a filer running A-SIS as well? > I hope that you mean this, because that would be great ;-) Yes -- that's what he means! When you do a VSM of a volume with A-SIS enabled, you get corresponding bandwidth savings as the volume is transferred in its deduplicated state. -- Michael Barrow michael at michaelbarrow dot name

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RE: A-SIS (NetApp De-Duplication)
by Sels Roger 28 Jul '07

28 Jul '07

Hi Vaugh, << In order to replicate de-duplicated data one will require A-SIS licenses on both the sopurce and destination FAS systems. VSM replication is my personal preference. >> Does this mean that the amount of replicated data is also reduced when you SM a A-SIS source volume to a filer running A-SIS as well? I hope that you mean this, because that would be great ;-) Roger -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of M. Vaughn Stewart Sent: za 28 jul 07 1:13 To: Peter W. Osel Cc: toasters(a)mathworks.com Subject: Re: A-SIS (NetApp De-Duplication) Peter, Hello and how are you my friend? The enabling of the Nearstore personality does not reduce the performance of a system as long as your maintain the number of replication streams (SnapMirror / SnapVault) to the non Nearstore limits for that platform. You can reference NOW for the limits. In order to replicate de-duplicated data one will require A-SIS licenses on both the sopurce and destination FAS systems. VSM replication is my personal preference. Vaughn Peter W. Osel wrote: > Hello *, > > we are in the process of consolidating several NetApp filers and > NearStore systems onto a single FAS30x0HA system. The system's main > function is to serve primary data (part from FCAL disks, part from > SATA disks), it's secondary function is to act as the NearStore system > for a second site, storing the copy of the other site's data on SATA disks. > > Now we would like to try A-SIS to reduce the required physical > storage. > > It looks as if in order to add A-SIS (a_sis license), I also need to > install the NearStore license. Now my concern is, that by giving the > system a NearStore personality I might impact the system's primary > role > - serving primary storage data to users. > > Has anyone experience with how a system changes when the NearStore > licenses is enabled? Any negative impact for serving data to users? > > Is the NearStore personality activated by installing the nearstore > license, or could we install the nearstore and a_sis license, but keep > the nearstore personality deactivated? > > > For data that we volume SnapMirror, would we need an A-SIS license on > both sides - source and target system? > > Will the volume SnapMirror transfer less data (assuming that A-SIS > de-dupe of data saved some of the required data blocks)? > yes?!) > > Any other experience (good or bad) or concerns when using A-SIS? > > Any reason to not use it on all (home directory type data) volumes? > > Any limitation encountered? > > Any experience how much savings can be achieved (e.g. for home > directories volumes, volume storing tons of application software > packages)? > > > Cheers > --pwo > > > -- > Peter W. Osel eMail: pwo(a)Qimonda.COM > Principal Development Systems Phone: +1.919.677.6333 > Qimonda North America Corp. Cell : +1.408.348.6735 > 3000 CentreGreen Way eFax : +1.804.952.3905 > Cary, NC 27513-5760, USA www : http://pwo.de/ > >

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How to reinstate "quota logmsg" settings after a reboot
by Chris Thompson 28 Jul '07

28 Jul '07

ONTAP 7.1.2 (and earlier versions) doesn't preserve "quota logmsg" settings over a reboot. There's a bug recorded for this (168726) at NOW, but it's only fixed in various 7.2.x releases, which I can't go to because I am stuck on an F8xx series filer :-( I tried putting an appropriate "quota logmsg" command at the end of /etc/rc (after "savecore"), but this didn't work for some reason. There's nothing in /etc/messages or /etc/log/auditlog that indicates it even tried to obey it. Any ideas? -- Chris Thompson Email: cet1(a)cam.ac.uk

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RE: Accessing snapmirrored (read only) LUN from Windows?
by Learmonth, Peter 27 Jul '07

27 Jul '07

Hi Steven I don't think Windows can mount NTFS read-only. You need to either break the mirror or FlexClone the dest vol. If using QSM, a LUN clone might work, but I haven't tried it. If you FlexClone, you should create a separate snapshot on the source to use as the baseline. If you use one of the SnapMirror snapshots, it could break SnapMirror (or so I've seen - others have said it depends on which SM snap you use). With vol SM, the dest is read-only which is why you put the snap on the source and let it replicate over. Share and Enjoy! Peter ... Sent from one of those phone+email doohicky things... I reserve the right to be wrong. -----Original Message----- From: Stephen C. Losen [mailto:scl@sasha.acc.virginia.edu] Sent: Friday, July 27, 2007 06:42 AM Pacific Standard Time To: toasters(a)mathworks.com Subject: Accessing snapmirrored (read only) LUN from Windows? We are working on a project that is housed in two separate buildings for disaster recovery. In each building we have a Windows server, a FAS270 filer and a FC SAN switch. The switches are not directly connected to each other, but we have long fibre runs so that each Windows server is connected to both switches. Each filer is connected to just its local FC switch. (This is a limitation of the FAS270, which has only one FC SAN port.) One filer is primary and the other is backup. On the primary filer I have a large volume containing a large LUN and this volume is being snapmirrored (synchronous) to the backup filer over ethernet. Both Windows servers can "see" both LUNs. We are using Windows clustering so that if the primary Windows server fails, the backup server will take over, using the primary LUN. If the primary netapp (or switch) fails, then we will need to manually intervene to cut over to the backup filer and LUN. So here is my question (at last). Is it possible to access both the primary LUN and the read only backup LUN on a Windows server? Windows seems to be confused by the read only LUN and I am seeing errors on the backup filer saying that Windows is trying to write to the LUN. I'm not a Windows guy, but is there any way to look at the files on the read only LUN from Windows? This isn't necessary for normal operations, I'm just curious. Steve Losen scl(a)virginia.edu phone: 434-924-0640 University of Virginia ITC Unix Support

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Accessing snapmirrored (read only) LUN from Windows?
by Stephen C. Losen 27 Jul '07

27 Jul '07

We are working on a project that is housed in two separate buildings for disaster recovery. In each building we have a Windows server, a FAS270 filer and a FC SAN switch. The switches are not directly connected to each other, but we have long fibre runs so that each Windows server is connected to both switches. Each filer is connected to just its local FC switch. (This is a limitation of the FAS270, which has only one FC SAN port.) One filer is primary and the other is backup. On the primary filer I have a large volume containing a large LUN and this volume is being snapmirrored (synchronous) to the backup filer over ethernet. Both Windows servers can "see" both LUNs. We are using Windows clustering so that if the primary Windows server fails, the backup server will take over, using the primary LUN. If the primary netapp (or switch) fails, then we will need to manually intervene to cut over to the backup filer and LUN. So here is my question (at last). Is it possible to access both the primary LUN and the read only backup LUN on a Windows server? Windows seems to be confused by the read only LUN and I am seeing errors on the backup filer saying that Windows is trying to write to the LUN. I'm not a Windows guy, but is there any way to look at the files on the read only LUN from Windows? This isn't necessary for normal operations, I'm just curious. Steve Losen scl(a)virginia.edu phone: 434-924-0640 University of Virginia ITC Unix Support

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CIFS shares presentation to users
by Paul Letta 27 Jul '07

27 Jul '07

Hello, We we getting ready to consolidate several older filers onto a single FAS3040. Each of these older filers had several CIFS shares exposed. My users are used to going to the Run box in windows and typing \\filerA to get filersA's shares and \\filerB to get filer B's shares and so on. But now there is just \\Newfiler. This produces a list of all the CIFS shares that used to be on several different filers. Is there a way to group several cifs shares together and present them in a folder, or another share ? I would like to be able to go to \\NewFiler, and get a window that has a few folders, each of which holds several shares. I don't think this can be done, but I thought I would ask here anyways. Thanks, Paul

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