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trouble accessing nfs .snapshot dirs via cifs shares
by Romeo Theriault 22 Oct '09

22 Oct '09

Hello, We have a VMware environment with nfs as the transport protocol. What I'm testing out is snapvaulting the vmware datastores to another filer and then creating cifs shares on the snapvaulted volumes (qtrees), so the windows client vm's can access their vmdk files to restore files. I should state that I'm a newbie to cifs on the netapps as we are a unix shop. But, I have the snapvault setup all working. Where I'm running into problems is accessing the directories in the shares when I map a drive in windows to the share. I configured cifs to authenticate against: (3) Windows Workgroup authentication using the filer's local user accounts So I created a user 'vmrestore' though the useradmin tool and user vmrestore is part of a group cifsonly which has role none assigned to it. I then added an entry to /etc/passwd for the vmrestore user. At this point I can create a share to the vmware .snapshot directory on the snapvault destination and give the vmrestore user access to the share via: filer> cifs access vmsnaps vmrestore rwx I can now connect to the share fine but cannot access any of the shares folders as I get a "Access is denied" error. I've been reading the netapp docs and googling around for a while now but am having a difficult time understanding how I need to configure the local user account so I can access the folders/files on the unix security style volumes. I've tried mapping the vmrestore user to the root user via the usermap.cfg file. Thinking that since the vm files are owned by root maybe the vmrestore user has to be mapped to a user with a uid of 0 to have access to them. I've also tried the --forcegroup option on the share. Basically, I'm not having any luck and wanted to see if anyone has run into this (or just knows what I'm doing wrong). Any help is very much appreciated. Thanks, -- Romeo Theriault System Administrator Information Technology Services

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7.3.1.1 and SnapDrive 4.1 for Windows Compatibility?
by John Stoffel 21 Oct '09

21 Oct '09

Hi all, We've got some Windows Boxes running SnapDrive 4.1 (not sure about Windows OS, but mostly Windows Server 2003 I think) and we're currently using 7.2.6.1P1 on the 2050. We'd like to move to 7.3.1.1, but the SnapDrive Compatibilty Matrix doesn't seem to acknowledge SnapDrive 4.1 in any useful way. I know it's old client software, but it does the job. Anyone know if it's going to work or not? Thanks, John John Stoffel - Senior Staff Systems Administrator - System LSI Group Toshiba America Electronic Components, Inc. - http://www.toshiba.com/taec john.stoffel(a)taec.toshiba.com - 508-486-1087

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Re: Netapp Contract / Support questions
by Blackmor, Chris 21 Oct '09

21 Oct '09

I agree with Matt. USUALLY we get outstanding support from NA. We also track people we work with and keep an informal ranking system. +5=walks on water to -5=hang up and try again. We are a large shop with more than 140 filers world wide. This equates to a lot of interaction. Yes, we pay out the nose for support but we usually so pretty well with them. In the instances where your engineer is falling flat remember two little words... Duty Manager As far as tier 1 support, I have not found a large company that has quite met NA's bar but there is always room for improvement. C- ----- Original Message ----- From: owner-toasters(a)mathworks.com <owner-toasters(a)mathworks.com> To: Rasta Surfer <rsurfer(a)gmail.com> Cc: toasters(a)mathworks.com <toasters(a)mathworks.com> Sent: Tue Oct 20 17:59:30 2009 Subject: Re: Netapp Contract / Support questions I'm a big netapp fan - I think the tech is great and I've worked with them on and off for years. I think the one thing that netapp support does require in some situations, similar to some other vendors, is proactive effort on your part. Netapp has a bunch of very bright technical people, but support can be hit or miss. If you feel like your support engineer doesn't care or doesn't want to help (hasn't been my experience) or is just not understanding the problem/resolving it fast enough (definitely seen this), escalate. And netapp, as opposed to other vendors I work with, will come through for you. You'll get someone from engineering on the phone, or a service manager, etc. You can argue that you shouldn't have to do this, and in a perfect world, I agree. But whenever I or a customer of mine who is a netapp shop has been in a bind, netapp has delivered. I think that's worth something. There are third party companies that provide netapp support, but other than for basic parts replacement on legacy systems, I can't recommend them. Thanks, Matt On Oct 20, 2009, at 6:49 PM, "Rasta Surfer" <rsurfer(a)gmail.com> wrote: > We're a small shop a couple of FAS 3020's doing basic, NFS, CIFS, > Snapdrive/SnapManager For SQL and Snapmirror. We are up for our > contract renewal soon. I have been in the biz for quite a number of > years and can remember back to amazing support from Netapp. I have > found quite the opposite over the past two years. Most are problems > with first addressing the case, usually it took a phone call. Then > it gets to incompetence with their products, like SnapManager for > SQL and Snapdrive. Cases went on forever, i always had to hound > them for status, making it quite frustrating. The end result of > most cases is me getting a note from some support manager at Netapp > apologizing. > > I still like the products, just hate the support methods. > What do you folks do? We of course want to upgrade when possible to > keep up to date from bugs. We don't want to blow the bank though > for their support if we can go somewhere else for better. > > tia for your thoughts, > rsurfer > >

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Netapp Contract / Support questions
by Rasta Surfer 20 Oct '09

20 Oct '09

We're a small shop a couple of FAS 3020's doing basic, NFS, CIFS, Snapdrive/SnapManager For SQL and Snapmirror. We are up for our contract renewal soon. I have been in the biz for quite a number of years and can remember back to amazing support from Netapp. I have found quite the opposite over the past two years. Most are problems with first addressing the case, usually it took a phone call. Then it gets to incompetence with their products, like SnapManager for SQL and Snapdrive. Cases went on forever, i always had to hound them for status, making it quite frustrating. The end result of most cases is me getting a note from some support manager at Netapp apologizing. I still like the products, just hate the support methods. What do you folks do? We of course want to upgrade when possible to keep up to date from bugs. We don't want to blow the bank though for their support if we can go somewhere else for better. tia for your thoughts, rsurfer

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Re: I'm sorry -- egg all over my face! (was "RE: Thanks for Joining Tech OnTap!")
by Dave Minor 20 Oct '09

20 Oct '09

Delete Sent from my iPhone On Oct 19, 2009, at 11:18 AM, Kevin Davis <kdavis(a)mathworks.com> wrote: As someone who's run 10s of thousands of email systems, and spent a number of years working on preventing spam- this was pretty low on the stupid scale. I wouldn't spend too much time on the first two questions (I'm guessing the person responsible is suitably embarassed), or worrying about it too much, at all really, but submitting additions via a webapp that can sanity check things wouldn't hurt, and Its a great "give the interns something to do" project. Agreed. The number of messages was small-potatoes in the grand scheme of things. "delete" works just fine. And folks, let's hear it for NetApp responding from Dave Hitz's level to something like this; I hardly think we could expect the same from that other storage vendor should the same type of thing originate from their domain. Thanks, Dave, for responding so quickly and taking the time to explain. Now, can we get SMB2.x support built in to 8.0.x? ;) *------------------------------------------*-----------------------* | Kevin Davis (UNIX/Storage Sysadmin) | Natick, Massachusetts | | 508.647.7660 | 01760-2098 | | mailto:kevin.davis@mathworks.com *-----------------------* | http://www.mathworks.com | | *------------------------------------------*-----------------------*

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Linux/MySQL instances on VM/ESX
by Rob Borowicz 19 Oct '09

19 Oct '09

Howdy all, I'm new to the ESX arena and have been consuming CentOS instances on several ESX servers in house. These CentOS instances are an appliance image my company makes that runs a potentially busy MySQL db. We have so far been using only locally attached disk, but I'm thinking filers rock using NFS to ESX host, and most probably there is a best practices guide published by Netapp. I no longer support filers and as such don't have a NOW account anymore, but am curious to how well filers support ESX datastore requirements. Could anybody advise me on what the standard practice is? Direct attach GigE links from the filer to the ESX host and run NFS? How many instances of MySQL can you get away with on an ESX host mounting filer volumes? TIA -Bob B.

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Thanks for Joining Tech OnTap!
by NetApp 19 Oct '09

19 Oct '09

================================================================================= NetApp Tech OnTap ================================================================================= Dear Toasters, Thank you for joining the NetApp Tech OnTap program. You will begin to receive Tech OnTap communications in the next few weeks. In the meantime, I invite you to browse the articles, tips, and tools available in the Tech OnTap archive. http://www.netapp.com/us/communities/tech-ontap/archive/tot-archive.html?el… And - to thank you for your membership - here is your first "member-only" benefit: the latest Tech OnTap Magazine, where you can catch up on a collection of our best articles. http://media.netapp.com/documents/tot-spring09-magazine.pdf?elq=2076d26ef30… Welcome to Tech OnTap! Dave Hitz Founder and Executive Vice President NetApp ----------------------------------------------------------------- Go further, faster(TM) (c) 2009 NetApp http://app.communicate.netapp.com/e/er.aspx?s=1184&lid=13&elq=2076d26ef30e4… Privacy Policy http://app.communicate.netapp.com/e/er.aspx?s=1184&lid=14&elq=2076d26ef30e4… Unsubscribe http://www.netapp.com/us/forms/sp-update.html?ecid=CNTAP000000983586&ek=toa… Update My Profile http://www.netapp.com/us/forms/sp-manager.html?ecid=CNTAP000000983586&ek=to… Contact Us http://app.communicate.netapp.com/e/er.aspx?s=1184&lid=125&elq=2076d26ef30e… ----------------------------------------------------------------- 495 E. Java Drive, Sunnyvale, CA 94089 USA You are receiving this e-mail at toasters(a)mathworks.com because you joined Tech OnTap.

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7.3.1 simulator missing domains info?
by Nick Bernstein 16 Oct '09

16 Oct '09

I'm looking at the statit output on a sim running 7.3.1 and I'm not seeing the Multiprocessor statistics that includes domain info - could anyone who's running 7.3.1 confirm that it either exists or has been removed? The sections I'm looking for normally look like this: nonCP rupt usec 3060.42 4240.52 2873.10 265.81 10441.64 idle 992661.59 986785.16 992467.14 982095.96 3954013.42 kahuna 0.00 0.00 0.00 16950.50 16951.39 network 0.00 0.00 4402.87 0.00 4402.87 storage 0.00 8609.49 0.00 0.00 8609.49 exempt 287.22 57.98 66.90 62.44 475.43 raid 3478.76 0.00 0.00 0.00 3478.76 target ... etc. Thanks! Nick

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wafl realocate unable with snapshots
by Chaim Rieger 12 Oct '09

12 Oct '09

according to netapp, i can not do a reallocate if there are underlying snapshots, the issue is that the snapshots are for a large (3TB) oracle db, and will not be rotated off anytime soon. is there a way around this ? any ideas ?

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Re: High CPU utilizations and file I/O
by Raj Patel 06 Oct '09

06 Oct '09

Thanks for all the advice - thanks to Romeo Theriaults awesome tool I'll run some stats over time and see how things look. I'll probably give Logicmonitor a quick look and see how it compares to DFM. Cheers, Raj. On 10/7/09, Kevin M. Parker <kevin(a)theparkerz.com> wrote: > Raj, > I'll share knowledge I've received specific to NFS environments (and > this may be specific to VMware over NFS - sorry I can't confirm). The > way I understand it is that clients start experiencing negative > performance after 20ms disk latency. I do not know if that same latency > applies to iSCSI traffic. > > As it relates to the disks making up your aggregates, I can offer the > following numbers as they relate to disk IOPS, which is also somewhat > related to the original request in this thread. Numbers below are the > IOPS that disk can sustain before experiencing a >= 20ms delay. > FC@10KRPM: 120IOPS > FC@15KRPM: 220IOPS > SATA: 40IOPS > > I had looked on NOW for this type info but did not come up w/anything > quickly - perhaps you could reach out to your SE. > > -/- > Kevin Parker > 919.521.8413 > http://theparkerz.com > Blackle.com - Saving energy one search at a time. > > > -----Original Message----- > From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] > On Behalf Of Raj Patel > Sent: Monday, October 05, 2009 12:59 AM > To: Romeo Theriault > Cc: Maxwell Reid; vera.lee(a)avagotech.com; Milazzo Giacomo; > toasters(a)mathworks.com > Subject: Re: High CPU utilizations and file I/O > > As a matter of interest how much latency is to much (I know, how many > angels can you fit on a pinhead) ? > > We've had a few DBA types come and comment on long SQL queue lengths > associated with disk i/o - the SQL luns are connected via iSCSI. > > As far as the end user is concerned performance seems fine for things > like SharePoint and CRM. Even Exchange. However a few apps with high > i/o (mail archiving to database and SCOM which seems to thrash the > database) do seem to suffer a little in terms of slow response time. > > Do people have tips for optimising iSCSI performance (targets are ESX > servers, Exchange on physical hardware and SQL on a mix of physical > and virtual servers) ? > > What key counters should I keep an eye on ? > > Fibre Channel is still prohibitively expensive plus 10GbE seems very > promising and more pervasive than a few years ago. > > Cheers, > Raj. > > On 10/3/09, Romeo Theriault <romeotheriault(a)gmail.com> wrote: >>> >>> I think everyone would be interested in the updated version! >>> >> >> Great! Ok, I'll put up the version that can also filter on aggregates > on >> Monday. I hadn't put it up earlier mainly because it takes a bit more > setup >> to get working. I used the netapp perl api to access the aggregate >> information so it also requires a user account with the appropriate > api >> permissions and the associated netapp perl api modules. I just haven't >> gotten around to figuring out if I can legally bundle the netapp perl >> modules and just generally putting it in a easily usable package for > the >> general public. I'll try to figure out the details on monday and see > what I >> can get out, with or without the netapp modules. >> >> -- >> Romeo Theriault >> System Administrator >> Information Technology Services >> >

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