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March 20th, 2018 00:00
Zero reclaim on VMAX LUNs
Guys, need suggestion, how often we can run zero space reclaim on VMAX LUNs?
Guys, need suggestion, how often we can run zero space reclaim on VMAX LUNs?
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PedalHarder
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March 20th, 2018 15:00
I don't think there is one answer for you MJ1, but here are some points to consider:
- Are you low on free space? If you have plenty of available space then why bother with reclaiming?
- Reclaim uses resources on the array. Do you always have the back-end resources freely available or is the back-end busy with production load some times. This is a scheduling related consideration and you are looking at when in the week will be best to avoid any performance impact.
- Reclaim takes time. You should be aware of the how much time you can expect a reclaim operation to take if you are going to want to run it regularly, so consider setting aside some quite time where you can run a reclaim and assess its elapsed time and its effect on the utilization of your array resources. Once you have a handle on this information, it can help inform you how to go about effectively scheduling reclaim activities should the need arise.