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Date:      Wed, 31 Jul 2002 09:49:20 +0930
From:      Greg 'groggy' Lehey <grog@FreeBSD.org>
To:        Oliver Humpage <bittern@blueyonder.co.uk>
Cc:        Dan Nelson <dnelson@allantgroup.com>, freebsd-questions@FreeBSD.ORG, oliver@watershed.co.uk
Subject:   Re: Odd vinum config
Message-ID:  <20020731001920.GU45350@wantadilla.lemis.com>
In-Reply-To: <7BFBD5E4-A405-11D6-8DE2-000A2795CB26@blueyonder.co.uk>
References:  <20020730214035.GF95493@dan.emsphone.com> <7BFBD5E4-A405-11D6-8DE2-000A2795CB26@blueyonder.co.uk>

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On Tuesday, 30 July 2002 at 22:44:11 +0100, Oliver Humpage wrote:
> On Tuesday, July 30, 2002, at 10:40 PM, Dan Nelson wrote:
>
>> In the last episode (Jul 30), Oliver Humpage said:
>>> Is it possible to set up a mirrored volume in vinum, but only set *one*
>>> of the plexes to be used for reading?
>>>
>>> The reason I'm asking is that I'm making a Network Attached Storage
>>> box,
>>> which I think should have SCSI disks and RAID 1. Unfortunately, our
>>> budget doesn't stretch to 8 73GB SCSI drives :-)  So I wondered about
>>> having 4 73GB SCSI drives concatenated for the main storage space,
>>> and 2
>>> 160GB IDE drives (also concatenated) as a RAID 1 mirror. However, I
>>> don't want to put too much load on the IDE drives, so I thought perhaps
>>> vinum could be set *not* to read from them, merely to write (although,
>>> if a SCSI drive failed, of course it would have to read from them!).
>>
>> man vinum, search for readpol
>
> Makes note to self: searching in man pages doesn't wrap!
>
> I'd already looked for 'read policy' but hadn't found it. Sorry :)

readpol doesn't really work at the moment.  The syntax of the config
file is broken.  It's on my "to do" list.

Greg
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