Hi,
Great, but now we still don't know if it's possible to move a volume during maintenance ;-(
Met vriendelijke groet / Kind regards,
Henk Ruis Technical Consultant
-----Oorspronkelijk bericht----- Van: toasters-bounces@teaparty.net toasters-bounces@teaparty.net Namens Ian Ehrenwald Verzonden: donderdag 9 augustus 2018 18:13 Aan: Mike Gossett cmgossett@gmail.com CC: Toasters toasters@teaparty.net Onderwerp: Re: volume move and SFO
Good afternoon Update, as promised. The volume move completed early this morning so there will be no conflict with our maintenance tonight. Inline compaction is AWESOME - it has saved us over 16TB on this new SSD aggregate. Crazy stuff.
________________________________________ From: Mike Gossett cmgossett@gmail.com Sent: Wednesday, August 8, 2018 2:37:35 PM To: Ian Ehrenwald Cc: Douglas Siggins; Toasters Subject: Re: volume move and SFO
Hi Ian,
The good news is that, forgetting about what it is estimating, we've seen that in 24 hours 21TB has been copied and. Hopefully another 30 hours or whatever is sufficient for the remaining 9.5TB - thanks for sharing. I'm interested to know the result of the SFO - but if was me I'd try to push the maintenance back to be safe. Or open a ticket with support and see if they can tell you what to expect
On Aug 8, 2018, at 1:29 PM, Ian Ehrenwald Ian.Ehrenwald@hbgusa.com wrote:
Hi Mike Somewhat redacted output from a few minutes ago:
MyCluster1::> volume move show -instance
Vserver Name: mySvm Volume Name: aVeryLargeVolume Actual Completion Time: - Bytes Remaining: 9.44TB Destination Aggregate: aggr_ssd_3800g_c1n4 Detailed Status: Transferring data: 20.96TB sent. Estimated Time of Completion: Thu Aug 09 01:58:40 2018 Managing Node: Clus1-Node1 Percentage Complete: 68% Move Phase: replicating Estimated Remaining Duration: 11:45:25 Replication Throughput: 233.9MB/s Duration of Move: 23:47:43 Source Aggregate: aggr_sas_600g_c1n1 Start Time of Move: Tue Aug 07 14:25:38 2018 Move State: healthy Is Source Volume Encrypted: false Encryption Key ID of Source Volume: - Is Destination Volume Encrypted: false Encryption Key ID ofDestination Volume: -
MyCluster1::>
Depending on source filer load, I've seen Replication Throughput anywhere from 25MB/s through 400MB/s and higher. The source aggregate is 192x600GB SAS on a filer with 2TB FlashCache and it sometimes sees periods of 30K IOPS. I guess the point is ETA has been anywhere from just about now all the way out to this coming Sunday. There's a good chance that the move will complete before tomorrow evening according to these numbers though. If it doesn't complete on time, I guess we'll find out what effect, if any, SFO has (unless I can easily reschedule this HW maintenance).
From: Mike Gossett cmgossett@gmail.com Sent: Wednesday, August 8, 2018 13:59 To: Douglas Siggins Cc: Ian Ehrenwald; Toasters Subject: Re: volume move and SFO
How long did it take to get to your 60% point that you reference? Some quick math says 30TB at 400MB/s should complete in about 22 hours. If you're 60 percent done, and you have a day and a half, then it should complete before tomorrow night, right?
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