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It is safe but you need to make sure all Disk I/O is stopped first. usually best practice is to shutdown the attached server wait 5 minutes for Disk I/O to completely stop then power down.
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It is safe but you need to make sure all Disk I/O is stopped first. usually best practice is to shutdown the attached server wait 5 minutes for Disk I/O to completely stop then power down.

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Pushing the power button should clear the write cache, don't pull the power leads out instead or unflushed cache will go stale in a day or so when the batteries go flat.
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Pushing the power button should clear the write cache, don't pull the power leads out instead or unflushed cache will go stale in a day or so when the batteries go flat.

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Thanks for answering, and that is how I have been doing it. One of the MSA20's when it is restarted rebuilds every time. I use 500GB drives select all 12 for raid6 then build out logical drives. when it is restarted it rebuilds all 3 logical drives every time. Any idea's on that?
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Thanks for answering, and that is how I have been doing it. One of the MSA20's when it is restarted rebuilds every time. I use 500GB drives select all 12 for raid6 then build out logical drives. when it is restarted it rebuilds all 3 logical drives every time. Any idea's on that?

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Can anyone point me to a document that shows the proper shutdown procedure for a MSA20. I simply push the power button until the unit powers off, and was wondering if that is safe.
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Can anyone point me to a document that shows the proper shutdown procedure for a MSA20. I simply push the power button until the unit powers off, and was wondering if that is safe.

HP SA MSA20

Servers are computing devices that are similar to desktop computers in that they have the same basic components, but are significantly different in size, configuration and purpose. Servers are usually accessed over a network, and many run unattended, without a computer monitor, input device, audio hardware or USB interfaces. Many servers do not have a graphical user interface (GUI), and are configured and managed remotely. Servers typically include hardware redundancy such as dual power supplies, RAID disk systems, and ECC memory, along with extensive pre-boot memory testing and verification. Critical components might be hot swappable, and to guard against overheating, servers might have more powerful fans or use water cooling.

Server Hardware

Components are those devices that are internal to a computer -- the PC boards, the central processor (CPU), the memory (RAM), disk and video controllers and so on.