assuming drive cache: write through

[Patrick_Boyd at Dell.com]

http://lists.us.dell.com/fom-serve/cache/110.html

SAS is also made by LSI so the drivers bahave the same. 

-----Original Message-----
From: linux-poweredge-bounces at dell.com
[mailto:linux-poweredge-bounces at dell.com] On Behalf Of Greg Dickie
Sent: Wednesday, September 13, 2006 10:49 AM
To: linux-poweredge-Lists
Subject: assuming drive cache: write through


Hi,

  On my PE2900 with megaraid_sas I have the VDISKS set for write-back
caching. Without getting into a philosophical discussion of why thats
bad, how come the kernel pops up with:

SCSI device sdc: 1754529792 512-byte hdwr sectors (898319 MB)
sdc: test WP failed, assume Write Enabled
sdc: asking for cache data failed
sdc: assuming drive cache: write through


Kernel is 2.6.17.11-ish

Thanks alot,
Greg



--
Greg Dickie
just a guy
Maximum Throughput

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