toasters April 2007

toasters@lists.teaparty.net

68 participants
51 discussions

Tools for managing filer content
by jbrigman＠nc.rr.com 06 Apr '07

06 Apr '07

Hey Toasterz; Are there any free software tools which might run on a filer's server host (whether Linux or Windoze) for managing content on a filer? I'm looking for something I can run, preferably as a cron job or a scheduled job. I'm envisioning something that will let me configure a "control file" list of names of files to look for on the filer, then the program would walk the shares and exports and tell me how much space is being taken up on the filer by each file type. Even just a perl script would be great. I do have a windows app called Treesize Pro (which is not free) I use to get a snapshot of occupancy of various CIFS shares. It's useful and is the best thing I've got at the moment. But I'd like to have something I could script to send out a report summary providing both the overall occupancy of a volume plus a breakdown of what's in the volume. JKB

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Re: sizing files and folders on a filer
by John Foley 05 Apr '07

05 Apr '07

All - thanks for the replies. The java method was the most interesting, but I couldn't get it to work consistently - some directories it would work on, but others it would claim that the directory didn't exist. I tried a few things, but could never get it to be reliable, so I punted on that. Nice to know about it, though ! For the record, I will probably end up using a VB script from Windows to accomplish what I need to do, since in our environment the Windows client can get to everything I need to get to, and I there are several that are on Gb networking, so the sizing will be faster. Thanks, John Matti Ryymin wrote: > Hi John, > > You can find du command in java shell; > On console type java netapp.cmds.jsh > in the shell you can use du command. > You'll exit from shell with exit command. > > regards, > > Matti Stephen C. Losen wrote: > > 4K and there are no fragments, so a file consumes disk space in 4K > increments. > > I would use Unix: du -k > > Not that I know of. > > One interesting bit of WAFL trivia -- if a file has <= 64 bytes of data > then it consumes 0 blocks because the file data is stored in the inode. > > Steve Losen scl(a)virginia.edu phone: 434-924-0640 > > University of Virginia ITC Unix Support > > > > -----Original Message----- > From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On > Behalf Of John Foley > Sent: 4. huhtikuuta 2007 19:07 > To: toasters(a)mathworks.com > Subject: sizing files and folders on a filer > > I am looking for the "best" way to size certain folders and files on a > NetApp filer. I get different numbers depending on whether I use Windows > (2000) or Unix (Solaris 9). (I am "root" in both cases, and thus able to see > all the files in a folder,etc). I am wondering if this is due to different > block sizes used by those OSes - Windows uses 4K, and Solaris 512K, I think > (!) > > So, my questions are : > 1) what is WAFL's block size ? > 2) what do you recommend for sizing folder and files that reside on the > filer, but are not themselves qtrees (so the quota report won't work) ? > 3) is there a "du" command on the filer itself that I"m missing ? > > Thanks, > > John > -- ------------------------------------------------------------------------------ John Foley < johnf(a)comm.mot.com > sent from Windows using Thunderbird

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If not NetApp, then who ?
by Paul Letta 05 Apr '07

05 Apr '07

Hi Everyone, We are a long time NetApp shop here. We started with the 540 and have upgraded multiple times and are now at FAS940's. The time has come for us to upgrade again. We have been extremely happy with NetApp. The reliability, uptime, support, features, etc. have spoiled us for years. What I want to ask the community now is: has anyone else appeared on the stage that you are as happy with ? There are a lot of products that claim to have snapshots, NFS/CIFS, etc. But how reliable are they ? Has anyone that has been really happy with NetApps moved to any of the newer players and been as happy ? My motivation looking elsewhere is, of course, price. I admit, I have been slightly bitten by the cheap SATA file servers bug. Our current config is with all FC drives, but if you have enough disks, SATA seems to be close to the performance. Does anyone have any suggestions as to what NetApp's real competitors are ? Anyone have any stories to share with me about trying someone else (cheaper) ? Thanks, Paul Letta

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sizing files and folders on a filer
by John Foley 04 Apr '07

04 Apr '07

I am looking for the "best" way to size certain folders and files on a NetApp filer. I get different numbers depending on whether I use Windows (2000) or Unix (Solaris 9). (I am "root" in both cases, and thus able to see all the files in a folder,etc). I am wondering if this is due to different block sizes used by those OSes - Windows uses 4K, and Solaris 512K, I think (!) So, my questions are : 1) what is WAFL's block size ? 2) what do you recommend for sizing folder and files that reside on the filer, but are not themselves qtrees (so the quota report won't work) ? 3) is there a "du" command on the filer itself that I"m missing ? Thanks, John -- ------------------------------------------------------------------------------ John Foley < johnf(a)comm.mot.com > sent from Windows using Thunderbird

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Re: Can one change the number of disks in a raid group on the fly
by Brent Ellis 04 Apr '07

04 Apr '07

Thanks for all the responses to this, I figured as much, but I was kinda hoping. Ultimately, it is not a big deal we will be growing this anyway, I just needed a little more space to allocate to a lun. Brent Ellis Computing Services Group Boston University On Apr 3, 2007, at 5:02 PM, Nollman, Bill wrote: > Brent, once the disks have been assigned to a RG they can't be > removed. > You can later grow the RG size and add more disks or even out the > RG's, > but you can't pull any out. > > Bill > > From: Brent Ellis [mailto:interi@bu.edu] > Sent: Tuesday, April 03, 2007 4:11 PM > To: toasters(a)mathworks.com > Subject: Re: Can one change the number of disks in a raid group on > the fly > > More backstory, I made a mistake when I was trying grow my > aggregate and I am seeing if I can change it. > > Essentially I have two shelves attached to a fas3020c filer. I had > a aggregate(aggr0) which was set to 14 disks per raid group with 1 > raid group using the disks from the 1st shelf. and then I have 4 > disks in the second shelf. I wanted to temporarily increase the > size of my aggregate so I increased the size and I expanded aggr0 > onto the disks from the second shelf. But then I realized I didn't > change the raid group size. so now I have 1 raid group with 14 > disks using raid_dp and a second group with 3 disks using raid_dp > and a spare. That means for the second raid group I have only > added a total of 1 disk of space while using 3 drives. It seems > like a waste so I wanted to see if I could safely backtrack or if I > have to stick with it and just fill out the rest of the shelf at > some point. > > -Brent > > > > On Apr 3, 2007, at 3:54 PM, Nollman, Bill wrote: > >> Brent; >> >> Of course you can ! >> >> From FilerView - Go to Aggregates / Manage / Click on the >> aggregate to modify / Click Modify / Next >> You should see "RAID Group Size" and the current number of disks >> per RG. >> Change it from the drop down. For FC disk this can be up to 28. >> For SATA up to 16 (with RAID-DP). >> >> Keep in mind that larger RG's will mean longer reconstruct time >> when you lose a disk. >> >> And Adam's note about back filling is correct as well....but only >> need to worry about that with more than 2 RG's. >> >> Bill Nollman >> NetApp SE - Hartford, CT. >> Cell: (860)-212-9466 >> >> >> From: Brent Ellis [mailto:interi@bu.edu] >> Sent: Tuesday, April 03, 2007 2:51 PM >> To: toasters(a)mathworks.com >> Subject: Can one change the number of disks in a raid group on the >> fly >> >> Question about resizing raid groups. Can one change the number of >> disks in a raid group on the fly in a netapp filer? I currently >> have an aggregate with a single raid groups and I would like to >> add another shelf. So as to reduce the amount of storage I lose >> can I change the size of the raid group and grow the underlying >> raid for the aggregate or do I have to start a new raid group? >> >> Brent Ellis >> Computing Services Group >> Boston University >> >> >> >

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RE: If not NetApp, then who ?
by Paul Keating 04 Apr '07

04 Apr '07

You can still put 3Par arrays behind NetApp filers, though. ;o) -- > -----Original Message----- > From: owner-toasters(a)mathworks.com > [mailto:owner-toasters@mathworks.com] On Behalf Of Wes Hardin > Sent: April 3, 2007 4:32 PM > To: max.reid(a)saikonetworks.com > Cc: letta(a)jlab.org; toasters(a)mathworks.com > Subject: Re: If not NetApp, then who ? > > > Plus they were fast, but that could > have been partly due > to the 3PAR array we had as the backend. ==================================================================================== La version française suit le texte anglais. ------------------------------------------------------------------------------------ This email may contain privileged and/or confidential information, and the Bank of Canada does not waive any related rights. Any distribution, use, or copying of this email or the information it contains by other than the intended recipient is unauthorized. If you received this email in error please delete it immediately from your system and notify the sender promptly by email that you have done so. ------------------------------------------------------------------------------------ Le présent courriel peut contenir de l'information privilégiée ou confidentielle. La Banque du Canada ne renonce pas aux droits qui s'y rapportent. Toute diffusion, utilisation ou copie de ce courriel ou des renseignements qu'il contient par une personne autre que le ou les destinataires désignés est interdite. Si vous recevez ce courriel par erreur, veuillez le supprimer immédiatement et envoyer sans délai à l'expéditeur un message électronique pour l'aviser que vous avez éliminé de votre ordinateur toute copie du courriel reçu.

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iscsi vifs
by Darish Rajanayagam 04 Apr '07

04 Apr '07

Greetings: Currently, my ISCSI setup consist of a single mode vif on the NetApp side - this connects to a dedicated switch for the ISCSI traffic. I have active/passive clusters connected to this switch with dedicated NICs for ISCSI connectivity. On the server side, I run Snap Drive 4.1 and MS ISCSI Initiator. I would like to change this to the following. 1. Create two multimode vifs (each vif connecting to a separate switch - the switches would then be bridged) 2. Create a second level single mode vif consisting of the above two multimode VIFs - so only one vif is active at any one time. 3. The second level single mode vif will have the same IP address as it is now. If I make the above change, would this affect any of the currently mapped ISCSI connections? Do I need to re-map it through MS ISCSI initiator - IP addresses are not changing, would this cause any changes on the server side? Thanks, Darish.

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Re: Can one change the number of disks in a raid group on the fly
by Brent Ellis 03 Apr '07

03 Apr '07

More backstory, I made a mistake when I was trying grow my aggregate and I am seeing if I can change it. Essentially I have two shelves attached to a fas3020c filer. I had a aggregate(aggr0) which was set to 14 disks per raid group with 1 raid group using the disks from the 1st shelf. and then I have 4 disks in the second shelf. I wanted to temporarily increase the size of my aggregate so I increased the size and I expanded aggr0 onto the disks from the second shelf. But then I realized I didn't change the raid group size. so now I have 1 raid group with 14 disks using raid_dp and a second group with 3 disks using raid_dp and a spare. That means for the second raid group I have only added a total of 1 disk of space while using 3 drives. It seems like a waste so I wanted to see if I could safely backtrack or if I have to stick with it and just fill out the rest of the shelf at some point. -Brent On Apr 3, 2007, at 3:54 PM, Nollman, Bill wrote: > Brent; > > Of course you can ! > > From FilerView - Go to Aggregates / Manage / Click on the aggregate > to modify / Click Modify / Next > You should see "RAID Group Size" and the current number of disks > per RG. > Change it from the drop down. For FC disk this can be up to 28. For > SATA up to 16 (with RAID-DP). > > Keep in mind that larger RG's will mean longer reconstruct time > when you lose a disk. > > And Adam's note about back filling is correct as well....but only > need to worry about that with more than 2 RG's. > > Bill Nollman > NetApp SE - Hartford, CT. > Cell: (860)-212-9466 > > > From: Brent Ellis [mailto:interi@bu.edu] > Sent: Tuesday, April 03, 2007 2:51 PM > To: toasters(a)mathworks.com > Subject: Can one change the number of disks in a raid group on the fly > > Question about resizing raid groups. Can one change the number of > disks in a raid group on the fly in a netapp filer? I currently > have an aggregate with a single raid groups and I would like to add > another shelf. So as to reduce the amount of storage I lose can I > change the size of the raid group and grow the underlying raid for > the aggregate or do I have to start a new raid group? > > Brent Ellis > Computing Services Group > Boston University > > >

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Snapmirror NTAP is at 20% constantly
by Steven Mandrake 03 Apr '07

03 Apr '07

Hi Guys, Any reason why CPU utilization on my snapmirror destination is always at 20%??? My production filer is much less than that. The Snapmirror only happens once per day. All other indicators seem idle. Here is a sample output: CPU NFS CIFS HTTP Net kB/s Disk kB/s Tape kB/s Cache in out read write read write age 22% 0 0 0 1 1 65 59 0 0 4 20% 0 0 0 1 0 121 120 0 0 4 26% 0 0 0 1 1 336 59 0 0 3 22% 0 0 0 1 1 2017 472 0 0 3 23% 0 0 0 1 0 2461 413 0 0 3 22% 0 0 0 1 0 2334 182 0 0 3 24% 0 0 0 1 1 1307 206 0 0 3 20% 0 0 0 1 1 61 59 0 0 3 22% 0 0 0 1 0 123 118 0 0 3 Another question -- Is there a way I can monitor utilization/performance of NVRAM and Memory? What other perf commands can I use other than sysstat? Thanks

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Can one change the number of disks in a raid group on the fly
by Brent Ellis 03 Apr '07

03 Apr '07

Question about resizing raid groups. Can one change the number of disks in a raid group on the fly in a netapp filer? I currently have an aggregate with a single raid groups and I would like to add another shelf. So as to reduce the amount of storage I lose can I change the size of the raid group and grow the underlying raid for the aggregate or do I have to start a new raid group? Brent Ellis Computing Services Group Boston University

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toasters April 2007