[lkml]   [2000]   [Sep]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Subject3ware controllers and fatal failure mode design decision
I was wondering if any one knows of a way around the following problem,
and I wanted to warn people considering 3ware controllers as a storage

I talked to 3ware already and they don't have a solution.

The latest 3ware firmware for their current products requires that
all drives in an array be absolutely identical.

Say you setup an 8 drive RAID 10 array and a year later a drive
blows out. You *MUST* replace it with an absolutely identical
drive. It must ID completely identifical!

Whoa! What if the drive isn't made anymore?

Seems like a nightmare scenario to me.

Worse yet. I just ran into it.

When I first got my 3ware controller it was perfectly happy to
mix and match drives. However, due to a bug in the linux driver
which was later corrected by 3ware they suggest I upgrade
the firmware.

The controller continued to boot and operate happily but when
it came time to change the array configuration the BIOS refused
to work with mix drives!

I figure there is probably a way to modify something so I could
have the OS lie to the 3ware controller and I could get my
mixed batch of drives back online.

Pointers would be appreciated.

Maybe we can turn the 3ware product line back into a useful product.

Brian Litzinger <>

Copyright (c) 2000 By Brian Litzinger, All Rights Reserved
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
Please read the FAQ at

 \ /
  Last update: 2005-03-22 12:38    [W:0.050 / U:0.852 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site