Date: Mon, 09 Jun 2008 15:49:40 +0200 From: Daniel Ponticello <daniel@skytek.it> To: Stefan Lambrev <stefan.lambrev@moneybookers.com> Cc: Andy Kosela <andy.kosela@gmail.com>, freebsd-stable@FreeBSD.org Subject: Re: Current status of support for high end SAN hardware Message-ID: <484D34F4.4050902@skytek.it> In-Reply-To: <484D22ED.5060500@moneybookers.com> References: <3cc535c80806071158h44ec9be1pbe72ca6711016bde@mail.gmail.com> <484AE6E1.2050504@skytek.it> <484D22ED.5060500@moneybookers.com>
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man gmultipath is your friend ;)
MULTIPATH ARCHITECTURE
This is an active/passive multiple path architecture with no device
knowledge or presumptions other than size matching built in. Therefore
the user must exercise some care in selecting providers that do indeed
represent multiple paths to the same underlying disk device. The
reason
for this is that there are several criteria across multiple underlying
transport types that can indicate identity, but in all respects such
identity can rarely be considered definitive.
Regards,
Daniel
Stefan Lambrev ha scritto:
>
>
> Daniel Ponticello wrote:
>> On FreeBSD7, i'm succesfully using Qlogic 4gb fibre channel HBAs (ISP
>> driver)
>> attached to Fibre Brocade Switch and IBM DS4700 (14 disks array)
>> using 4 way multipath
>> with gmultipath.
> So far the support in gmultipath is active/passive only? I think in
> RH5 you can have active/active.
> Am I right?
>>
>> Regards,
>>
>> Daniel
>>
>> Andy Kosela ha scritto:
>>> Hi all,
>>> What is the current status of support for high end SAN hardware in
>>> FreeBSD?
>>> I'm especially interested in support for HP EVA/XP disk arrays, Qlogic
>>> HBAs, multipathing.
>>> How FreeBSD compares in this environment to RHEL 5?
>>>
>>>
>>
>
--
WBR,
Cordiali Saluti,
Daniel Ponticello, VP of Engineering
Network Coordination Centre of Skytek
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