xfs
[Top] [All Lists]

Re: Velociraptor drive related to the use of NCQ.

To: linux-kernel@xxxxxxxxxxxxxxx, linux-raid@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx, smartmontools-support@xxxxxxxxxxxxxxxxxxxxx
Subject: Re: Velociraptor drive related to the use of NCQ.
From: Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx>
Date: Fri, 5 Dec 2008 08:59:54 -0500 (EST)
Cc: Alan Piszcz <ap@xxxxxxxxxxxxx>
In-reply-to: <alpine.DEB.1.10.0812050602400.3188@xxxxxxxxxxxxxxxx>
References: <alpine.DEB.1.10.0812050602400.3188@xxxxxxxxxxxxxxxx>
User-agent: Alpine 1.10 (DEB 962 2008-03-14)


On Fri, 5 Dec 2008, Justin Piszcz wrote:

I swapped out my power supply, changed ALL cables and bought a $1000 raid
controller with BBU, the drives are still having problems, when writing to
them in a RAID10 configuration, it locks up the card:

SMART shows the same thing on many of the disks in the RAID10:

Error 1 occurred at disk power-on lifetime: 3708 hours (154 days + 12 hours)
When the command that caused the error occurred, the device was active or idle.

I spoke to soon, turning off NCQ helped dramatically, it worked three times!

writing to raid10
dd: writing `file2': No space left on device
1430328+0 records in
1430327+0 records out
1499806973952 bytes (1.5 TB) copied, 3914.51 s, 383 MB/s
Fri Dec  5 06:00:25 EST 2008
writing to raid10
dd: writing `file2': No space left on device
1430328+0 records in
1430327+0 records out
1499806973952 bytes (1.5 TB) copied, 4063.25 s, 369 MB/s
Fri Dec  5 07:08:11 EST 2008
writing to raid10
dd: writing `file2': No space left on device
1430328+0 records in
1430327+0 records out
1499806973952 bytes (1.5 TB) copied, 3926.71 s, 382 MB/s
Fri Dec  5 08:13:41 EST 2008

Then it crashed again, with NCQ enabled, it would not even complete one test,
So basically a new system, new PSU, new cables, its on a new APC UPS and the problem persists even when all disks are on a RAID card, SW raid, it does not matter, Velociraptors have problems, I think its time for me to get regular
1TiB disks and be done with it.

Justin.

<Prev in Thread] Current Thread [Next in Thread>