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| Evacuating a Disk https://www.3parug.com/viewtopic.php?f=18&t=1450 |
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| Author: | sjm [ Sun Jul 19, 2015 4:57 pm ] |
| Post subject: | Evacuating a Disk |
Hi All, I would like to remove Some Disks from the 3 par They are not faulty but I want to replace them with Bigger Disks in the same technology group. ie 480 GB ssd's now 1.92 TB ssd's As the 3par places these in the same cpgs. I have been told that you can migrate the data off these them remove, but finding a procedure how to do this is , very difficult. It was HP that said you can do this and then move the smaller ssd's to another SAN , so that's great. Just wish this part was like the old EVA days when you just "ungrouped" the Disk and all data was removed and re levelled across the Disks in the pool. I can log a job with Hp but thought I would Ask here first and see if anyone has done this also. According to the tech I spoke to as well...you can shift selves also...lol Chers Sjm |
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| Author: | Yanix [ Mon Jul 20, 2015 1:59 am ] |
| Post subject: | Re: Evacuating a Disk |
Take a look at this thread viewtopic.php?f=18&t=724 |
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| Author: | JohnMH [ Mon Jul 20, 2015 3:28 am ] |
| Post subject: | Re: Evacuating a Disk |
HP offer a rebalancing service to achieve this, they'll build a plan and set out the commands upfront, since most of the work is done remotely it's generally pretty low cost, they can do the same for enclosure moves also. http://h20195.www2.hp.com/v2/getpdf.aspx/4aa4-0280enw.pdf |
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| Author: | sjm [ Mon Jul 20, 2015 10:40 pm ] |
| Post subject: | Re: Evacuating a Disk |
Found another thread...most likely the one you posted and did some research and am happy with what I found. which is basically this 1) setpd ldalloc off <Disk id number> Stops Disk from being used. (use showpd -s to show Disk state) 2)movepdtospare -f -vacate <Disk number> -f means no confirmation is required -vacate - makes move of data permanent , removes source tags after relocation 3) showpdch -spr <disk id> Displays chunkets on Disk marked as spare 4)removespare <disk id>:a This removes all spare chunklets off the Disk 5) dismisspd <Disk id Number> Once the Disk shows up in "new" status they can be removed. Extra Steps Admithw -checkonly Tunesys -cpg Notes: If Step 2 Fails use command movepdtospare -f -vacate <disk id> -dr Take a note of the failed chunklets use command below to move failed chunklets movech -perm -ovrd <disk id>:<chunklet number> |
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