[CentOS] LSI MegaRAID experience...

[m.roth at 5-cent.us]

John Doe wrote:
>
> anyone using an LSI MegaRAID experienced "disappearing drives"...?
> We installed 6 new C6 servers, each with a Supermicro SMC2108 (LSI
> MegaRAID) controllers and 3 PX-128M5Pro SSDs ( RAID1 + hostswap).
> 2 weeks (and almost no activity on it, since not in production, apart from
> installation) later, megacli sees (based on the slot numbers):
> - on one server: only the 2nd disk of the RAID + the ex-hotswap brought
> online. NO sign of the first disk, no error message, it just
> "disapeared"...
> - on another server: apparently lost 1 of the 2 RAID1 disks and then the
> second disk of the RAID1...  Now I can only see the spare brought online,
> so lonely...
> Is it "normal" for megacli to "hide" failed disks?
> Controller's firmware is the latest.
> SSDs's firmware are not... will try to flash them.
> BTW, any tips to flash them through the RAID controller instead of having
> to remove them all and connect them to a SATA controller...?
> This is a bit scary...

You're saying that if you use megacli, it doesn't show the physical drive?

As someone else said, I'd look at the SM box: I have *nothing* but very
bad experience with SM's quality control (try sending 4? 5? 6? boxes out
of 20 back for repair from Penguin, a vendor that's all SM).

         mark "that doesn't count the couple or so sent back *twice*"