From: Keith Mannthey <kmannth@us.ibm.com>
To: linux-ext4@vger.kernel.org
Subject: Quick EXT4 discard question
Date: Thu, 21 Apr 2011 17:45:01 -0700 [thread overview]
Message-ID: <1303433101.1389.132.camel@keith-laptop> (raw)
Hello,
I am using some Intel SSD drives with 2.6.38.2.
/proc/scsi/scsi identifies them as:
"
Host: scsi4 Channel: 00 Id: 04 Lun: 00
Vendor: ATA Model: INTEL SSDSA2M080 Rev: 02M3
Type: Direct-Access ANSI SCSI revision: 05
"
Sometimes I am see the following messages that indicate discard is
disabled during runtime:
Relevant dmesg:
...
EXT4-fs (sdw): mounted filesystem with ordered data mode. Opts: nobarrier,discard
EXT4......
.... (some time later)
EXT4-fs warning (device sdw): release_blocks_on_commit:2672: discard not supported, disabling
EXT4-fs warning (device sds): release_blocks_on_commit:2672: discard not supported, disabling
EXT4-fs warning (device sdt): release_blocks_on_commit:2672: discard not supported, disabling
EXT4-fs warning (device sdu): release_blocks_on_commit:2672: discard not supported, disabling
EXT4-fs warning (device sdv): release_blocks_on_commit:2672: discard not supported, disabling
I am new to SSDs and discard is there something else I need to do to
make these drives work as expected?
Thanks,
Keith Mannthey
LTC Local Filesystem
next reply other threads:[~2011-04-22 0:45 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-22 0:45 Keith Mannthey [this message]
2011-04-22 2:27 ` Quick EXT4 discard question Tao Ma
2011-04-22 2:44 ` Keith Mannthey
2011-04-22 2:53 ` Tao Ma
2011-04-22 7:44 ` Lukas Czerner
2011-04-22 8:31 ` Tao Ma
2011-04-22 16:08 ` Keith Mannthey
2011-04-23 14:23 ` Eric Sandeen
2011-04-22 19:59 ` Greg Freemyer
-- strict thread matches above, loose matches on Subject: below --
2011-04-23 6:41 Girish Shilamkar
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