There is one advantage of hardware RAID that hasn't been mentioned
yet, and that's hot-swap. Last time I tried, software RAID fell over
when a HDD suddenly disappeared.
Did you just pull the thing out? I believe there was supposed to be some
mark down procedure before you actually pull the disk out.
Besides, it sounds weird...isn't the disk disappearing when it dies more
or less the same?
I will be testing yanking out a drive on my box. I will let you know how
it goes.
It is the breaking of electrical connections that it trips on. Even if a drive
fails, it is still commected, and the system can ignore it. AFAIR you can't
hot swap a regular SCSI drive either.
I don't try yanking non hot-swap drives. I watched a guy try to connect
an IDE cable while the box was on and on his lap. He got an electric
shock. 8-|
Anyway, a pull power plug and a pull eSATA cable test both resulted in
the expected degradation of mirror. Plugging in power or eSATA cable and
then bringing the disk back online worked as expected. Open Solaris
zpool mirror.
No echo > /proc special knowledge needed either.
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