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RE: Esx RDM mappings
by Asbjørn Bjørkelund 04 May '07

04 May '07

Hello, It's in a different datastore. Asbjorn -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Davies,Matt Sent: 4. mai 2007 13:11 To: Asbjorn Bjorkelund; toasters(a)mathworks.com Subject: RE: Esx RDM mappings Hi, Are you storing the mappings with the RDM or in a separate datastore ? Thanks Matt -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Asbjorn Bjorkelund Sent: 04 May 2007 11:04 To: toasters(a)mathworks.com Subject: Esx RDM mappings Hello we have experienced problems with raw device mappings. Several times has the RDM metafiles been corrupt, and vm's have not been able to boot until we recreate the metafile. One time this happened the filer had an uncontrolled shutdown, and later on when we tried to reboot the vm's they couldn't find their LUN's, and we had to recreate the mapping file to be able to boot them. Environment: ESX 2.5.2 HP Proliant DL385 with Emulex HBA FAS3020 OnTap 7.2.2 Is there anyone who has experienced similar problems with RDM mappings? Regards Asbjorn -- View this message in context: http://www.nabble.com/Esx-RDM-mappings-tf3691225.html#a10319989 Sent from the Network Appliance - Toasters mailing list archive at Nabble.com. _____________________________________________________________ This e-mail (including all attachments) is confidential and may be privileged. It is for the exclusive use of the addressee only. If you are not the addressee, you are hereby notified that any dissemination of this communication is strictly prohibited. If you have received this communication in error, please erase all copies of the message and its attachments and notify us immediately at help(a)generalatlantic.com <mailto:help@generalatlantic.com>. Thank You.

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Esx RDM mappings
by Asbjorn Bjorkelund 04 May '07

04 May '07

Hello we have experienced problems with raw device mappings. Several times has the RDM metafiles been corrupt, and vm's have not been able to boot until we recreate the metafile. One time this happened the filer had an uncontrolled shutdown, and later on when we tried to reboot the vm's they couldn't find their LUN's, and we had to recreate the mapping file to be able to boot them. Environment: ESX 2.5.2 HP Proliant DL385 with Emulex HBA FAS3020 OnTap 7.2.2 Is there anyone who has experienced similar problems with RDM mappings? Regards Asbjorn -- View this message in context: http://www.nabble.com/Esx-RDM-mappings-tf3691225.html#a10319989 Sent from the Network Appliance - Toasters mailing list archive at Nabble.com.

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battery F87
by Phil Hill 04 May '07

04 May '07

Hi all, does anybody know, were to buy NVRAM-Batteries for F87? I can't find the parts anywhere. Following infos are on our broken battery: P/N:271-01848 ES-3059 Model: 340848 PSC510000 E0150C thanks in advance Phil

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RE: Capacity FAS960 with mixed configutaion FC & Sata disk
by Sels Roger 04 May '07

04 May '07

Hi, I thought the max supported TB's in a configuration is software based. In that regard, you can mixed "any shelf" with "any shelf" until you reach the software limit. In my opinion the limitation is not based on the number and type of shelfs. Cheers, Roger -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Zalam Sudisno Sent: vr 04 mei 07 4:03 To: toasters(a)mathworks.com Subject: Capacity FAS960 with mixed configutaion FC & Sata disk Dear all, Now we have FAS960 with uses mixed configuration disk, 4 Shelves FC disk X 14 X 144GB, and another loop we have 2 Shelves SATA disk X 14 X 250GB. we don't have remaining Expantion slot again ( all expantion slot we are already uses) if we are check from FAS calculator Max Capacity for FAS960 with 144 Gb FC disk up to 12 Shelves, with 300 Gb FC disk up to 6 Shelves with 250 GB disk ATA up to 8 Shelves with 500 Gb disk ATA up to 4 Shelves But we not clear with Max capacity on mixed configuration disk. My question is : 1. How many Shelves we can add with FC disk 144Gb or 300GB ? 2. How many Shelves we can add with SATA disk 250 or 500Gb ? Thanks & Regards D I S N O PT. Mandawani Mandiri.

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Not explicitly NetApp, but this seems like the right crowd to ask: Linux (RHEL4.4), iSCSI & NetApp connectivity problems...
by Demaagd, Dave 04 May '07

04 May '07

Some information on the physical layout: 3 subnets in question - a general server VLAN, a '3rd party developer' server VLAN that is heavily firewalled off from everything else, a dedicated unmanaged switch LAN that is intended to segregate iSCSI traffic from the rest of the network. The first two run on the same switch fabric. 4 initiators in question - All RHEL4.4, all current packages and errata applied, all have confirmed connectivity (ping and telnet to port 3260). The NetApp is an IBM N5200 (rebadged NetApp 3020) running DOT 7.1. Interface layout looks like this: e0a is connected to the general server VLAN, e0b is connected to the iSCSI LAN, e0c and e0d are used as crossover cable connections (which I am trying to eliminate by implementing the iSCSI LAN). The e0a interface has iSCSI targeting disabled, it is enabled (the default setting) on b c and d. HostA - on the 3rd party VLAN (eth0) and the iSCSI LAN (eth1) HostB - on the general server VLAN (eth0) and the iSCSI LAN (eth1) HostC - on the general server VLAN (eth0) and connected to the NetApp via a crossover (eth1) NetApp - on the general server VLAN, the iSCSI LAN, and using 2 ports for crossover (interface layout given above) The story/problem (as I see it): Was trying to hook HostA up to the NetApp to get some extra disk space for it. Software installed clean, no special settings - just set the DiscoveryAddress to the NetApp iSCSI LAN address in iscsi.conf, set the initiator name, mapped the initiator name/group to a LUN, and figured that would be it (that config worked great with the crossover connections). Fired up the daemon, saw the connection on both ends, iscsi-ls shows the LUN on the initiator. But, if I try to do anything that actially looks at it from a device level (fdisk -l, cat /proc/scsi/scsi, etc), I get a mess of 'ping timeout, failed command, session dropped, session established' loops before it finally gives up a few minutes later (usually gives up, sometimes it locks so hard I may as well reboot the box). After messing with additional parameters that looked promising (particularly the PingTimeout option) in iscsi.conf without success, I came up with the hypothesis that maybe there was some strange interaction because the primary network interface for this machine is on is heavily firewalled (no outbound, period; only inbound is on port 80 and 22). To test this hypothesis, I set up HostB, identical packages/network layout as HostA, and it worked great. Figured that kinda added weight to my hypothesis above. Would deal with that later, I was happy. The problem came in last night when I attempted to change HostC from the crossover connection to the iSCSI LAN. Stopped services, unmounted drives, changes network and iSCSI parameters, started things back up again. Lo and behold, the same thing that happened to HostA was happening to HostC. Fortunately, was able to roll this back very easily, so nobody but myself was irritated. Been searching around today to see if I can find information about similar problems on the web, found a couple things that didn't help (but were interesting reading, and I did manage to get some performance boosts out of them), and I thought it was time that I should ask someone who might have experience in this kind of thing before I pull out too much hair. I really hope that this is something simple that I'm overlooking. Log files/packet traces/general details available if needed (don't want to spam too many people with info that may not be applicable)... -- Dave DeMaagd, DOL QA Engineering dave.demaagd(a)dig.com | (818) 623-3755 | (818) 262-7958

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Solaris Oracle NFS mount options
by Carl Howell 02 May '07

02 May '07

In TR-3322 it says that the mount point for the redo logs should have the forcedirectio option on and the mount point for the data files should have it off. KB7518, which appears to be more recent, doesn't say anything about mount options for redo log volumes, but I assume you should have either forcedirectio or llock on both the mount points for your redo logs and data files. Is this correct? Thanks, - Carl

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RE: Data migration
by Suresh Rajagopalan 27 Apr '07

27 Apr '07

I did try clearing the snapmirror snapshot but that did not work for me. Setting snapmirror.enable to be off worked. Suresh _____ From: Leeds, Daniel [mailto:dleeds@edmunds.com] Sent: Friday, April 27, 2007 1:06 PM To: Kleinbrahm, Robert; Suresh Rajagopalan; toasters(a)mathworks.com Subject: RE: Data migration or you can clear the snapmirror snapshot within the volume to remove the relationship. -- Daniel Leeds Senior Systems Administrator Edmunds.com -----Original Message----- From: Kleinbrahm, Robert [mailto:rkleinbrahm@firstrepublic.com] Sent: Fri 4/27/2007 1:03 PM To: Suresh Rajagopalan; Leeds, Daniel; toasters(a)mathworks.com Subject: RE: Data migration I had the same thing happen to me. Solution is to turn snapmirror off on both the source and destination before mounting the lun. Netapps response on this. 1. Turn off SnapMirror on source filers 2. Turn off SanpMirror on destination filers. Snapmirror no longer detects a previously SnapMirrored relationship. When connecting to that LUN, the mounting process takes very little time. This worked for me and is quite fast. Bob K. ________________________________ From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Suresh Rajagopalan Sent: Friday, April 27, 2007 12:05 PM To: Leeds, Daniel; toasters(a)mathworks.com Subject: RE: Data migration OK I tried these steps with a small 20g volume. Unmount the source lun, do final snapmirror update, break mirror, set fs_size_fixed on. Now When I try to connect the new lun via snapdrive on the destination, I get (after the prompt for SFSR) the following error message: Unable to connect disk Failure in checking policies Error: unable to find a snapshot containing a consistent virtual disk to restore This happens on both snapdrive 4.1 and 3.1.1R1. What am I missing? Thanks Suresh ________________________________ From: Leeds, Daniel [mailto:dleeds@edmunds.com] Sent: Thursday, April 26, 2007 3:26 PM To: Suresh Rajagopalan; toasters(a)mathworks.com Subject: RE: Data migration snapmirror is what you want. you can set it up anytime prior to the migration and let it run on a schedule or manually to build the initial baseline. after that you just do a snapmirror update to keep it in sync. we have done this so many times it's second nature. quite simply: 1) create target volume and initialize snapmirror relationship to source while lun is live and serving data 2) setup maintenance window and take filesystem/lun offline 3) perform final snapmirror update 4) break snapmirror relationship and bring new lun/volume online 5) mount new lun/filesystem and serve up data snapmirror is a really handy product :) -- Daniel Leeds Senior Systems Administrator Edmunds.com -----Original Message----- From: owner-toasters(a)mathworks.com on behalf of Suresh Rajagopalan Sent: Thu 4/26/2007 3:02 PM To: toasters(a)mathworks.com Subject: Data migration I need to migrate a 1.4Tb lun from one filer to another with minimal downtime (< 30 mins). So clearly some copying of data has to be done prior to the actual move. Would snapmirror or flexclone be the most appropriate for this? I'm not sure how I would get a consistent copy of the lun over to the other filer. This is not a database, the lun contains flat files on NTFS. Thanks Suresh The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and delete the material from any computer. First Republic Bank and its subsidiaries do not take responsibility for, or accept time-sensitive instructions sent by email including orders, funds transfer instructions or stop payments on checks. All instructions of this nature must be handled by direct communication, not email. We reserve the right to monitor and review the content of all email communications sent or received. Emails sent to or from this address may be stored in accordance with regulatory requirements.

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RE: Data migration
by Suresh Rajagopalan 27 Apr '07

27 Apr '07

OK I tried these steps with a small 20g volume. Unmount the source lun, do final snapmirror update, break mirror, set fs_size_fixed on. Now When I try to connect the new lun via snapdrive on the destination, I get (after the prompt for SFSR) the following error message: Unable to connect disk Failure in checking policies Error: unable to find a snapshot containing a consistent virtual disk to restore This happens on both snapdrive 4.1 and 3.1.1R1. What am I missing? Thanks Suresh _____ From: Leeds, Daniel [mailto:dleeds@edmunds.com] Sent: Thursday, April 26, 2007 3:26 PM To: Suresh Rajagopalan; toasters(a)mathworks.com Subject: RE: Data migration snapmirror is what you want. you can set it up anytime prior to the migration and let it run on a schedule or manually to build the initial baseline. after that you just do a snapmirror update to keep it in sync. we have done this so many times it's second nature. quite simply: 1) create target volume and initialize snapmirror relationship to source while lun is live and serving data 2) setup maintenance window and take filesystem/lun offline 3) perform final snapmirror update 4) break snapmirror relationship and bring new lun/volume online 5) mount new lun/filesystem and serve up data snapmirror is a really handy product :) -- Daniel Leeds Senior Systems Administrator Edmunds.com -----Original Message----- From: owner-toasters(a)mathworks.com on behalf of Suresh Rajagopalan Sent: Thu 4/26/2007 3:02 PM To: toasters(a)mathworks.com Subject: Data migration I need to migrate a 1.4Tb lun from one filer to another with minimal downtime (< 30 mins). So clearly some copying of data has to be done prior to the actual move. Would snapmirror or flexclone be the most appropriate for this? I'm not sure how I would get a consistent copy of the lun over to the other filer. This is not a database, the lun contains flat files on NTFS. Thanks Suresh

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Data migration
by Suresh Rajagopalan 27 Apr '07

27 Apr '07

I need to migrate a 1.4Tb lun from one filer to another with minimal downtime (< 30 mins). So clearly some copying of data has to be done prior to the actual move. Would snapmirror or flexclone be the most appropriate for this? I'm not sure how I would get a consistent copy of the lun over to the other filer. This is not a database, the lun contains flat files on NTFS. Thanks Suresh

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Hot-remove loop B
by Suresh Rajagopalan 26 Apr '07

26 Apr '07

We are running a 3020 cluster and need to do maintenance on one side of the cluster (filer head and disk shelves). Can we unplug loop B from the other cluster member while it is running? We only need it to service its loop A during the maintenance window. Thanks Suresh

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