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snapmirror question
by steve klise 03 Jun '10

03 Jun '10

We are doing a head upgrade tonight, and will upgrade ontap from 7.24 and go to 7.3.3 GD. We have a bunch of filers that snapmirror to a 3070 that is 7.3.2.p3. Our VAR said this should still be supported, snapmirroring from 7.3.3 to 7.3.2. Has anyone done this or confirmed if it will work? Any gotchas? thanks always in advance. -- View this message in context: http://old.nabble.com/snapmirror-question-tp28768308p28768308.html Sent from the Network Appliance - Toasters mailing list archive at Nabble.com.

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Shelf replacement on clustered pair
by Steve Losen 01 Jun '10

01 Jun '10

Hello toasters, We need to replace a disk shelf on a FAS3050 clustered pair and I was wondering if I could shut down just the filer that owns the shelf and leave the partner up, even though the partner is connected to the shelf. We had a fan fault on a PSU, replaced it, and later on the fan fault came back. Replaced it again and the same thing happened, so now we must replace the shelf. It is in the middle of a shelf chain and I must disconnect it and physically remove it from the cabinet. On the FAS3050 disk ownership is hardware assigned. Filer "A" owns all of the shelves and disks on its 0a FC adapter and the bad shelf is on this chain. The partner filer "B" is also connected to these shelves using its 0b FC adapter and the ESH2 "B" modules on the shelves. I am wondering if I can leave filer "B" up. I was thinking along these lines: cf disable shut down filer "A" power off bad shelf, disconnect, and remove install replacement shelf, move disks, PSUs and ESH2 modules from old shelf to replacement shelf. set shelf id connect and power on wait for shelf to boot and disks to spin up boot filer "A" cf enable I am sure that filer "B" will be unhappy because its 0b loop will be broken, but I hope it will stay up because all of the disks that B owns will remain available. Only partner disks owned by "A" will disappear. Will filer "B" return to normal when its 0b loop is reconnected? We are running ONTAP 7.3.1.1 I know it is safer to shut down both filers, but the resulting downtime would be more than twice as disruptive. Steve Losen scl(a)virginia.edu phone: 434-924-0640 University of Virginia ITC Unix Support

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Re: snapmirror slow
by Page, Jeremy 01 Jun '10

01 Jun '10

Have you tried a reallocate measure? What does a statit look like during the xfer? Did it ever run properly? Bert Kiers <kiersb(a)xs4all.net> wrote: Hi, We have a problem on one head in a 6070 fabric metro cluster where snapmirror is slow. The maximum speed is 9.6 MB/s no matter how high it is throttled. If throttle is set lower, then the lower value is the transfer speed. It was orginally diagnosed going over the network, but snapmirror from one volume to another on the same head is also slow. Vol copy and NFS writes to volumes in the same aggregate are ten times faster. Also, snapmirror on the partner in the FMC is fast. The aggr has 84 15k RPM disks, raid size is 21, disks are 300 GB. I have tried destroying and recreating the aggr; also tried smaller aggr; same result. There is nothing special in /etc/messages or /etc/log/snapmirror. For the incrowd, this is netapp case 2001426595, opened 21-Apr-2010, but there is no progress there, so I ask here. Any ideas? Grtnx, -- Bert Kiers XS4ALL UNIX systeembeheerder, suspected terrorist 1984 was not meant as a manual Please be advised that this email may contain confidential information. If you are not the intended recipient, please notify us by email by replying to the sender and delete this message. The sender disclaims that the content of this email constitutes an offer to enter into, or the acceptance of, any agreement; provided that the foregoing does not invalidate the binding effect of any digital or other electronic reproduction of a manual signature that is included in any attachment.

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snapmirror slow
by Bert Kiers 31 May '10

31 May '10

Hi, We have a problem on one head in a 6070 fabric metro cluster where snapmirror is slow. The maximum speed is 9.6 MB/s no matter how high it is throttled. If throttle is set lower, then the lower value is the transfer speed. It was orginally diagnosed going over the network, but snapmirror from one volume to another on the same head is also slow. Vol copy and NFS writes to volumes in the same aggregate are ten times faster. Also, snapmirror on the partner in the FMC is fast. The aggr has 84 15k RPM disks, raid size is 21, disks are 300 GB. I have tried destroying and recreating the aggr; also tried smaller aggr; same result. There is nothing special in /etc/messages or /etc/log/snapmirror. For the incrowd, this is netapp case 2001426595, opened 21-Apr-2010, but there is no progress there, so I ask here. Any ideas? Grtnx, -- Bert Kiers XS4ALL UNIX systeembeheerder, suspected terrorist 1984 was not meant as a manual

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ZFS support on OSSV (Open System SnapVault) ?
by Sto Rage© 28 May '10

28 May '10

Toasters, Are there any plans to support backup of ZFS volumes using OSSV(Solaris) ? To put it another way, what would be a good way to backup ZFS volumes to a NetApp. Anyone doing this currently? Thanks -G

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Max number of disks reached
by Milazzo Giacomo 24 May '10

24 May '10

Hi all, is there a way to bypass the max numbers of disk supported by a FAS3140C? This limit is 420 disks and I could have other 56 disks to add. Regards,

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multipahting shelves and disk ids
by Nicholas Bernstein 18 May '10

18 May '10

I haven't looked at this in a bit, but just wanted to confirm - if I have a ds14 shelf with multipathing, the each disk will have a single disk id, but will be visable with a distinct path via "storage show disk -p". Is there any instance where a disk would show up with two "ids" based on being accessed via two loops. -Nick

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Snaplock option
by Dufay, Pascal 18 May '10

18 May '10

Hi everybody, I have a FAS250 with only one aggregate. I bought a snaplock license and I would like to use it. I found the following command to create an aggregate with snaplock feature (aggr create aggrname -L snaplock_type...), but is it possible to add snaplock options to an existing aggregate ? If yes, how to do it ? Thanks in advance. Pascal DUFAY Chef de projet Sidel Group SERVICE INFORMATIQUE Sidel, avenue de la Patrouille de France - BP 204 - 76053 LE HAVRE Cedex - France tél : 02 32 85 80 60 / Fax : 02 32 85 81 38 pascal.dufay(a)sidel.com This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error), please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.

2 1

nvram charge lifespan
by Nick Bernstein 18 May '10

18 May '10

Hi all, I did a little googling, but after nothing came up in the first pass I thought I'd see if anyone knew off the top of their head: how long can a nvram battery in the current generation of storage systems protect data w/o power? In other words, how long can a system remain down before the data goes kaput? Thanks in advance, Nick

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LTO5 drives and OnTap ?
by Paul Letta 17 May '10

17 May '10

Hello. Does anyone have any word on when LTO 5 drives will be supported in OnTap ? I'm getting an evaluation unit in a few days and was hoping to see it work with my FAS3040 with FC connections. I've never had FC tape drives on this 3040, the FC card has just sat there unused. I have had LTO3 SCSI drives attached to it. Does anyone have any experience with just connecting a new tape drive to an unused FC port like this ? I would like to think that the worst that would happen is that the 3040 just wouldn't see it, but I guess a filer panic could happen. We are a bit behind the OnTap curve, we are still at 7.2.6.1P3. We went to 7.3.1, but got hit with a filer panic loop due to linux clients hitting it with the rquota bug, so we had to downrev back. That was a while ago, but its left a bad taste for 7.3 for us.. Thanks, Paul

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