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тАО04-15-2009 03:41 AM
тАО04-15-2009 03:41 AM
We have EVA5000 2C18D with 146GB hard disk configuration. we are about to meet all available space. now we are planning to replace 146GB harddsik with 300GB. so we can create free space in our disk group.
please share the best available option to replace the 146GB harddisk by ONLINE process. we are trying to safe time from leveling process.
-Sharjeel
Solved! Go to Solution.
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тАО04-15-2009 04:17 AM
тАО04-15-2009 04:17 AM
Solutionone possibility is to ungroup the old disks in 8 in any DG, then replace them by 8 new disks in the same DG (disk mixture is allowed whilst not recommended from the performance point of view), this can be done online and after a while all disks in the DG will become the new disks. But the leveling will always be a part of a game. But leveling is a background process with low priority, so you should not be affraid from any front IO degradation...
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тАО04-15-2009 04:30 AM
тАО04-15-2009 04:30 AM
Re: EVA5000 2C18D plan upgrade with new bigger size hard disk
Yes, i was about to plan for it, but we need to confirm few points before we proceed,
1. we need equals to 8 hdd free space in this EVA?
2. we can perform another 8 disks ungroup during leveling process running?
Thx.
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тАО04-15-2009 04:34 AM
тАО04-15-2009 04:34 AM
Re: EVA5000 2C18D plan upgrade with new bigger size hard disk
But that that is not sooo bad if you remove all small disk drives from the group anyway.
IBaltay suggests 8 disk drives at once to help the EVA optimize the internal storage organization (look for the magic acronym "RSS" in this forum ;-)
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тАО04-15-2009 04:35 AM
тАО04-15-2009 04:35 AM
Re: EVA5000 2C18D plan upgrade with new bigger size hard disk
If you want to keep you RSS verticality, first of all you need to have the RSS map and then ungroup the whole 1 RSS from the DG and replace and group it with the new RSS (the default is 8 physical disk)
Yes, ungroup is separate/independent procedure from leveling whilst in rare cases of very small free space in the DG you can have problem of the leveling blocking the ungroup, so you should avoid the situation of the ungroup under the critical free amount of free space...
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тАО04-15-2009 04:54 AM
тАО04-15-2009 04:54 AM
Re: EVA5000 2C18D plan upgrade with new bigger size hard disk
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тАО04-15-2009 04:58 AM
тАО04-15-2009 04:58 AM
Re: EVA5000 2C18D plan upgrade with new bigger size hard disk
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тАО04-16-2009 12:08 AM
тАО04-16-2009 12:08 AM
Re: EVA5000 2C18D plan upgrade with new bigger size hard disk
Yes we have enough space atleast for releasing 8hdd at a time.
I didn't get ur point (one hdd at a time), u want me to ungroup 1 disk and let the leveling completed before second?? Or else. If yes then its time taken process to replace all 18 shelf hdd.please help another way.
Thx
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тАО04-16-2009 12:21 AM
тАО04-16-2009 12:21 AM
Re: EVA5000 2C18D plan upgrade with new bigger size hard disk
Check the disk's properties and if it reports that it is no longer grouped, you can ungroup the next drive.