toasters December 2006

toasters@lists.teaparty.net

50 participants
40 discussions

Netapp NearStore VTL700 & EMC/Legato Networker experience
by John Stoffel 14 Dec '06

14 Dec '06

Hi all, Has any one else out there dropped a NearStore VTL700 (or other model) into an existing NetApp/Legato Networker environment? We're thinking about doing this, but we'd love to hear people's experiences with it. Currently, we have SDLT 320 drives connceted via SCSI to the backup server, which talks over Gigabit to the Filers and other clients. In the new plan, we've have FibreChannel connecting the Filers, VTL and Backup server, with the tape library connected to the VTL only. Some of our concerns how we're going to be able to restore legacy Networker backup tapes? Will the VTL handle tapes it doesn't know anything about and allow them to be imported? We're also thinking of finally making the move to NDMP as well from NFS backups, but we're quite concerned about the limitations of DAR (Direct Access Restore) allowing us to restore large chunks of NDMP backups without having to manually break it into chunks due to Networker/NetApp limits? 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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AFS
by Sphar, Mike 14 Dec '06

14 Dec '06

Just throwing a question out there curious to hear people's thoughts or experiences. Every time I end up dealing with hundreds of stale file handles because of a server move/change I become increasingly annoyed by the stateless nature of NFS and think to myself "Maybe this time I'll finally start seriously looking at AFS." Other than lots of other ways an AFS deployment could be complicated, I wonder how if at all a Netapp can be part of an AFS deployment? Also feel free to tell me how using AFS is crazy in general and I should just accept my stale file handles. -- Michael W. Sphar - IS&T - Lead Systems Administrator SMBU Engineering Support Services, BMC Software

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DFM & Debian GNU Linux ?
by Aurélien Beaujean 13 Dec '06

13 Dec '06

Hi, I tried to install DFM3.3R1 on a Debian. Firsh the binary tests the validity of /etc/redhat-release so i gave him "Red Hat Enterprise Linux ES release 3". Second i transformed NTAPdfm.i386.rpm to a debian package with alien. The package were succesfully installed but i think the database has not been setup: not database/tables created. When i launch "dfm service start" i get this message: Dec 12 17:49:40 [dfm:ERROR]: Could not get valid status after attempting to start sql server. NOTE: This machine could be configured for failover as a stand by. Sql services will not be started on a stand by machine. If this machine is not configured for failover, the server may already be running. Please use the following system command to verify: "ps -e | grep dbsrv9" I think i have to launch dbsrv8 with thoses options: dbsrv9 -n MonitorDB_leia2 -o "/opt/NTAPdfm/log/sybase.log" -os 10000000 -gd all -gl all -gk all -gp 8192 -ct- -x SharedMemory,tcpip -ud /opt/NTAPdfm/data/monitordb.db but it says me "Could not open/read file: /opt/NTAPdfm/data/monitordb.db". Someone already had this problem ? How can i setup this db, creates the tables it needs and launch it ? -- Auré

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RE: AFS
by Sphar, Mike 12 Dec '06

12 Dec '06

Mostly because my budget for this sort of thing is somewhere between zero and zero + 15%. I'm happy to hear about more expensive solutions for future reference though, just to know how other people deal with similar problems. For example, in the last 10 years, we've had to re-ip our entire networks four or five times, couple of times due to acquisitions, others because the network infrastructure team decided things would be better if we re-architected everything. I've also dealt with about 4 or 5 server room moves in the same time period. Ironically, CIFS is never a problem in these scenarios, but NFS is frequently the cause of weeks of trickling-in problem reports and complaints. -- Michael W. Sphar - IS&T - Lead Systems Administrator SMBU Engineering Support Services, BMC Software -----Original Message----- From: Shawn Stephens [mailto:shawn174@houston.rr.com] Sent: Tuesday, December 12, 2006 4:14 PM To: Sphar, Mike; toasters(a)mathworks.com Subject: Re: AFS If you're tired of the stale file handles, why not virtualize your storage behind an Acopia switch? http://www.acopia.com Shawn On 12/12/06 1:00 PM, "Sphar, Mike" <Mike_Sphar(a)bmc.com> wrote: > Just throwing a question out there curious to hear people's thoughts or > experiences. Every time I end up dealing with hundreds of stale file > handles because of a server move/change I become increasingly annoyed by > the stateless nature of NFS and think to myself "Maybe this time I'll > finally start seriously looking at AFS." > > Other than lots of other ways an AFS deployment could be complicated, I > wonder how if at all a Netapp can be part of an AFS deployment? > > Also feel free to tell me how using AFS is crazy in general and I should > just accept my stale file handles.

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Re: MySQL or PostgreSQL with Filer storage?
by slinkymax0r 09 Dec '06

09 Dec '06

> We'd like to have our database storage resident on a Filer with > NFS. Do any of you have experience or insight into this for MySQL or > PostgreSQL? I understand Oracle's happy to work like this but my > google searches seem to indicate it's a bad idea to use NFS storage > for PostgreSQL or MySQL. As long as you're not sharing the data files between multiple database servers, this should work fine, with the understanding that it "won't be as fast" (greater latency) necessarily as local/block disk. The normal caveats for DB stuff applies, no softmounts, use TCP, Use GbE etc. etc. etc. Regards, Max > > Thanks. > > http://www.postgresql.org/files/documentation/books/aw_pgsql/hw_performance… > > NFS and other remote file systems are not recommended for use by > POSTGRESQL. NFS does not have the same file system semantics as a > local file system, and these inconsistencies can cause data > reliability or crash recovery problems. > > http://dev.mysql.com/doc/refman/5.0/en/multiple-servers.html > > The warning against sharing a data directory among servers also > applies in an NFS environment. Allowing multiple MySQL servers to > access a common data directory over NFS is a very bad idea. > > * The primary problem is that NFS is the speed bottleneck. It is > not meant for such use. >

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MySQL or PostgreSQL with Filer storage?
by Chris Shenton 08 Dec '06

08 Dec '06

We'd like to have our database storage resident on a Filer with NFS. Do any of you have experience or insight into this for MySQL or PostgreSQL? I understand Oracle's happy to work like this but my google searches seem to indicate it's a bad idea to use NFS storage for PostgreSQL or MySQL. Thanks. http://www.postgresql.org/files/documentation/books/aw_pgsql/hw_performance… NFS and other remote file systems are not recommended for use by POSTGRESQL. NFS does not have the same file system semantics as a local file system, and these inconsistencies can cause data reliability or crash recovery problems. http://dev.mysql.com/doc/refman/5.0/en/multiple-servers.html The warning against sharing a data directory among servers also applies in an NFS environment. Allowing multiple MySQL servers to access a common data directory over NFS is a very bad idea. * The primary problem is that NFS is the speed bottleneck. It is not meant for such use.

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user permissions
by John Sfetsoris 08 Dec '06

08 Dec '06

hello everybody there is a filer fas960 with ontap 7.0.4. I want to create an account that only can monitor volume and snapshot spaces, and in case of volume full, to be able to delete snapshots, and all these only via http. However , if i create an account using useradmin comand with allowed capabilities only login-http-admin, this account, among other things, can perform volume and aggregate deletion, have access to etc/hosts, etc/hosts.equiv, e.t.c. Is somehow possible to restrict this account to specified capabilities? It is possible via telnet, but what about http? thnks in advance John Sfetsoris

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RE: user permissions
by Holloway, Chris 08 Dec '06

08 Dec '06

I had the exact same problem where the restrictions were perfect using the CLI but had no effect on FilerView. Turned out to be bug id 167183 which is still not fixed. Chris -----Original Message----- From: owner-toasters(a)mathworks.com on behalf of John Sfetsoris Sent: Thu 07/12/2006 14:15 To: toasters(a)mathworks.com Cc: Subject: user permissions hello everybody there is a filer fas960 with ontap 7.0.4. I want to create an account that only can monitor volume and snapshot spaces, and in case of volume full, to be able to delete snapshots, and all these only via http. However , if i create an account using useradmin comand with allowed capabilities only login-http-admin, this account, among other things, can perform volume and aggregate deletion, have access to etc/hosts, etc/hosts.equiv, e.t.c. Is somehow possible to restrict this account to specified capabilities? It is possible via telnet, but what about http? thnks in advance John Sfetsoris Any views or opinions presented in this email are solely those of the author and do not necessarily represent those of the company. Employees of the company are expressly required not to make defamatory statements and not to infringe or authorize any infringement of copyright or any other legal right by email communications. Any such communication is contrary to company policy and outside the scope of the employment of the individual concerned. The company will not accept any liability in respect of such communication, and the employee responsible will be personally liable for any damages or other liability arising.

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RE: NFS shares suddenly giving permission denied
by Glenn Walker 08 Dec '06

08 Dec '06

For what it's worth, CIFS probably continued to function for already connected clients because of existing(cached) WAFL credentials and SID cache. If the clients had disconnected, waited 20 minutes and reconnected, I would have expected failure. Domain issues would also explain failure to connect via MMC. Glenn -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Myles Uyema Sent: Thursday, December 07, 2006 9:45 PM To: Sto Rage(c) Cc: Maglinger, Paul; NetApps list server Subject: Re: NFS shares suddenly giving permission denied bug 139351 does not affect 6.4.5 because it didn't use the same export cache method that 6.5.x does. 6.4 does forward dns lookups the moment you run exportfs -a 6.5 does reverse dns lookups the moment a client sends an RPC, then matches it according to the exportfs access list. Then it addes the IP to its exports cache. It sounds like trying 'cifs resetdc' might be something to do next time, as it looks like it had trouble communicating with the domain controller. On Thu, 7 Dec 2006, Sto Rage(c) wrote: 6.4.5?? Looks like you hit the bug we saw in 2004. Upgrading to 6.5.2 fixed it. Workaround was to add entries in the /etc/hosts file of the filer. look for Bug 139351 related to name resolution. -G On 12/7/06, Maglinger, Paul <PMAGLINGER(a)scvl.com> wrote: > NetApps 740 running 6.4.5. > > All of a sudden starting to get permission denied errors on some of our > NFS shares from our Tru64 Unix servers, not all of them but just some of > them. And with some other weirdness where we could go into the top > level but then get permission denied when trying to list the contents. > The messages file had the following: > > SamrGetGroupsForUsers: Exception rpc_s_unknown_reject caught. > SamrCloseHandle: Exception rpc_s_connection_closed caught. > > and then had a bunch of the following afterwards: > > LsaOpenPolicy2: Exception rpc_s_assoc_grp_max_exceeded caught. > SamrConnect2: Exception rpc_s_assoc_grp_max_exceeded caught. > > CIFS was working fine, but I couldn't hit the filer throught the > Computer Management console on the MMC. I checked processes and > auditing on the Unix side and couldn't tie it down to a specific > instance. Though I hated to do it, we ended up rebooting to restore > services. > I've tried Googling for this in reference to a NetApp box but am coming > up empty handed. Can someone enlighten me on what might have occurred? > > > ________________________________ > > Paul Maglinger, A+, CA, CCA, CET, MCSE > > Systems Administrator > Shoe Carnival Inc. > (812)867-4674 > pmaglinger(a)scvl.com > > > ________________________________ > > > > >

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NFS shares suddenly giving permission denied
by Maglinger, Paul 08 Dec '06

08 Dec '06

NetApps 740 running 6.4.5. All of a sudden starting to get permission denied errors on some of our NFS shares from our Tru64 Unix servers, not all of them but just some of them. And with some other weirdness where we could go into the top level but then get permission denied when trying to list the contents. The messages file had the following: SamrGetGroupsForUsers: Exception rpc_s_unknown_reject caught. SamrCloseHandle: Exception rpc_s_connection_closed caught. and then had a bunch of the following afterwards: LsaOpenPolicy2: Exception rpc_s_assoc_grp_max_exceeded caught. SamrConnect2: Exception rpc_s_assoc_grp_max_exceeded caught. CIFS was working fine, but I couldn't hit the filer throught the Computer Management console on the MMC. I checked processes and auditing on the Unix side and couldn't tie it down to a specific instance. Though I hated to do it, we ended up rebooting to restore services. I've tried Googling for this in reference to a NetApp box but am coming up empty handed. Can someone enlighten me on what might have occurred? ________________________________ Paul Maglinger, A+, CA, CCA, CET, MCSE Systems Administrator Shoe Carnival Inc. (812)867-4674 pmaglinger(a)scvl.com ________________________________

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toasters December 2006