Smart Array P400 Controller Driver 628064

Posted By admin  On 25.04.21

This page contains the driver installation download for Smart Array P400 Controller in supported models (ProLiant DL380 G5) that are running a supported operating system. PROLIANT DL 380 G5 HP SMART ARRAY P400 ‎ 12:23 PM. Hi GBL84, thanks for your response. From the components I could see CP011324 Smart Array SAS /SATA Controller driver, CP010920 HP Proliant PCI-express Power Management update for windows. Raid card is installed into PCI express slot.

This is probably a dumb question.I recently purchased a couple of refurbished HP SB40C storage blade for our HP Bladesystem c3000 enclosure. Each comes with an HP Smart Array P400/256MB SAS Controller and a 4.8V NI-MH cache raid battery.

The smart array utility warns me about a low charge on the battery for each storage blade. Could it be because they probably haven't been turned on for a while just sitting around in some storage room? I mean of course batteries will drain out on their own, but I'm assuming this is the case rather than a coincidence that both batteries are dead. So just what would most people assume in this case?

Also, how would it affect my array if I use the controller without batteries?

PS: I cant be sure because my enclosure doesn't have enough power supplies (arriving soon) to turn on 4 blades and hence possibly charge the batteries. I have to make a quick decision on whether the order new batteries ASAP or count on their simply needing to recharge.

Thanks!

3a2roub3a2roub

Smart Array P400 Controller Driver 628064 Download

4 Answers

Driver

You're correct in that the warning is the result of the systems being offline for sometime. Power everything up and they will regain their charge.

In the case that the batteries are dead (unlikely), the impact to array performance is that the array accelerator (write cache) will be disabled. This results in low write performance. There is a mechanism in recent P4xx firmware to override this action, allowing write cache even in the event of a mission or failed battery/flash unit, but it carries consequences of data corruption if you experience total power loss on the blade or blade enclosure.

Smart Array P400 Controller Driver 628064 Laptop

Community♦
ewwhiteewwhite

The batteries are an item that fails over time. Their purpose is to provide power to the RAID contoller in the event of a power outage, to give enough time to write data that is in the buffer to the platters.

gWaldogWaldo

The battery is there to preserve data in the cache in the event of a controller power failure. It allows data to be written to persistent storage (disks) rather than being lost and therefore causing corrupt/incomplete data on disk.

Controller

This battery backed cache behaviour is called 'write back' mode whereby the controller sends the system a write acknowledgment as soon as data data hits the cache (rather than waiting for the disks to write). This provides a significant write performance increase especially when dealing with small writes.

Smart Array P400 Controller Driver 628064

However, should the cache be in an unsafe mode such as its battery backup being dead then the controller should operate in 'write through' mode which is a direct commit to disk operation where the operating system is not notified of a successful write until the physical disks have actually written it.

If you run write back cache mode without battery and the controller does loose power, you will potentially end up with a bunch of half written files, with the other half gone for good. This = corrupt data.

tomstephens89tomstephens89

Low charge on the battery of HP Smart Array P400/256 Controller will lead to Hard Disks failures, especially hot plug SAS.

IdreesfIdreesf

Smart Array P400 Controller Driver 628064 Pc

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