From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: Eric Wheeler <bcache@lists.ewheeler.net>
Cc: Coly Li <colyli@suse.de>,
linux-block@vger.kernel.org,
Eric Wheeler <git@linux.ewheeler.net>,
Eric Wheeler <bcache@linux.ewheeler.net>,
Jonathan Corbet <corbet@lwn.net>,
Kent Overstreet <kent.overstreet@gmail.com>,
"open list:DOCUMENTATION" <linux-doc@vger.kernel.org>,
open list <linux-kernel@vger.kernel.org>,
"open list:BCACHE BLOCK LAYER CACHE"
<linux-bcache@vger.kernel.org>
Subject: Re: [PATCH] bcache: make stripe_size configurable and persistent for hardware raid5/6
Date: Sat, 22 Jun 2019 20:41:11 -0400 [thread overview]
Message-ID: <yq1v9wxnnfc.fsf@oracle.com> (raw)
In-Reply-To: <1561245371-10235-1-git-send-email-bcache@lists.ewheeler.net> (Eric Wheeler's message of "Sat, 22 Jun 2019 16:16:09 -0700")
Eric,
> While some drivers set queue_limits.io_opt (e.g., md raid5), there are
> currently no SCSI/RAID controller drivers that do.
That's not true. Lots of SCSI RAID devices report a stripe width.
--
Martin K. Petersen Oracle Linux Engineering
WARNING: multiple messages have this Message-ID (diff)
From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: Eric Wheeler <bcache@lists.ewheeler.net>
Cc: Coly Li <colyli@suse.de>,
linux-block@vger.kernel.org,
Eric Wheeler <git@linux.ewheeler.net>,
Eric Wheeler <bcache@linux.ewheeler.net>,
Jonathan Corbet <corbet@lwn.net>,
Kent Overstreet <kent.overstreet@gmail.com>,
linux-doc@vger.kernel.org (open list:DOCUMENTATION),
linux-kernel@vger.kernel.org (open list),
linux-bcache@vger.kernel.org (open list:BCACHE (BLOCK LAYER
CACHE))
Subject: Re: [PATCH] bcache: make stripe_size configurable and persistent for hardware raid5/6
Date: Sat, 22 Jun 2019 20:41:11 -0400 [thread overview]
Message-ID: <yq1v9wxnnfc.fsf@oracle.com> (raw)
In-Reply-To: <1561245371-10235-1-git-send-email-bcache@lists.ewheeler.net> (Eric Wheeler's message of "Sat, 22 Jun 2019 16:16:09 -0700")
Eric,
> While some drivers set queue_limits.io_opt (e.g., md raid5), there are
> currently no SCSI/RAID controller drivers that do.
That's not true. Lots of SCSI RAID devices report a stripe width.
--
Martin K. Petersen Oracle Linux Engineering
next prev parent reply other threads:[~2019-06-23 0:41 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <d3f7fd44-9287-c7fa-ee95-c3b8a4d56c93@suse.de>
2019-06-22 23:16 ` [PATCH] bcache: make stripe_size configurable and persistent for hardware raid5/6 Eric Wheeler
2019-06-22 23:16 ` Eric Wheeler
2019-06-23 0:41 ` Martin K. Petersen [this message]
2019-06-23 0:41 ` Martin K. Petersen
2019-06-24 6:57 ` Coly Li
2019-06-24 7:05 ` Coly Li
2019-06-24 18:14 ` Eric Wheeler
2019-06-24 23:24 ` Martin K. Petersen
2019-06-24 23:24 ` Martin K. Petersen
2019-06-26 0:23 ` Eric Wheeler
2019-06-26 2:50 ` Martin K. Petersen
2019-06-26 2:50 ` Martin K. Petersen
2019-06-25 1:59 ` Coly Li
2022-01-06 3:29 ` Eric Wheeler
2022-01-06 16:17 ` Coly Li
2022-01-08 0:21 ` Martin K. Petersen
2022-01-08 4:54 ` Eric Wheeler
2022-01-08 21:51 ` Eric Wheeler
2022-01-10 16:14 ` Martin K. Petersen
2022-01-10 23:30 ` Eric Wheeler
2022-01-11 2:55 ` Martin K. Petersen
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