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I'm new to hp servers. we own an hp dl160 gen9 with soft raid. it uses the b140i controller to manage 4 LFF in raid 5.

My question is: how can I scrub the raid? I've installed the hpssacli utils: while they allow me to have a report on the controller and array status, I can not find any reference to data scrubbing.

In linux soft raid I was used to program a periodic check of raid data, I would like to reproduce the same on this server.

thank you.

matteo nunziati
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1 Answers1

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You don't need to do anything. The controller handles this in the background.

http://h20565.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c00687518

This is also a feature of the fakeraid Dynamic Smart Areay controllers.

http://m.hp.com/h20195/v2/GetPDF.aspx/c04390743.pdf

Smart Array controllers perform a background surface analysis during inactive periods, continually scanning all drives for media defects. Smart Array controllers can also detect media defects when accessing a bad sector during busy periods. If a Smart Array controller finds a recoverable media defect, the controller automatically remaps the bad sector to a reserve area on the disk drive. If the controller finds an unrecoverable media defect and you have configured a fault-tolerant logical drive, the controller automatically regenerates the data and writes it to the remapped reserved area on the disk drive.

ewwhite
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  • while it is not so obvious to me reading the docs, I suppose that what you cited is also true for soft raid. The documentation is about Smart Array in general and also provides info about battery backed raids, which is not the case at all for soft raid B1**i controllers! soft raid is just a possible feature in a small paragraph. Thank for the doc's link – matteo nunziati May 17 '16 at 07:13
  • This feature, surface scan analysis, is also present in the dynamic smart array. It's in the specifications. See: http://m.hp.com/h20195/v2/GetPDF.aspx/c04390743.pdf – ewwhite May 17 '16 at 07:17