Re: looking for good reference on storage configuration

[Miles Fidelman <mfidelman@meetinghouse.net>]

Thanks Ladislav - that gives me a starting point!

Best,

Miles

On 11/5/15 12:44 PM, Ladislav Mate wrote:
> On Wed, Oct 21, 2015 at 2:00 PM, Miles Fidelman
> <mfidelman@meetinghouse.net> wrote:
>> Hi Folks,
>>
>> Perhaps someone here might be able to point me at a reference or two on
>> alternatives and best practices for configuring storage for a server - using
>> a mix of SSDs and conventional drives.
>>
>> I'm in the process of upgrading a small cluster of 4 machines - each
>> containing RAID arrays, with DRBD across clusters to support failover.  Easy
>> enough with a uniform collection of HDDs.  But I can't get my head around
>> how to add SSDs into the mix - what with the mismatch in access speeds and
>> all, it would seem like one needs a more complex configuration with a level
>> of caching between the faster and slower media.
>>
>> Seems like someone would have written a book, or tutorial, or case study, or
>> conference presentation - but damned if I can find anything.  Any pointers,
>> or guidance, would be much appreciated.
>>
>> Thanks,
>>
>> Miles Fidelman
>>
>> --
>> In theory, there is no difference between theory and practice.
>> In practice, there is.   .... Yogi Berra
>>
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> Hi Miles,
> might me long shot, but can take a look on LVM caching..
> Good description how to setup it is here :
> http://blog-vpodzime.rhcloud.com/?p=45
> Working for me for months now.... without DRBD.
> HTH,
>
> --
> Ladislav Máte
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-- 
In theory, there is no difference between theory and practice.
In practice, there is.  .... Yogi Berra

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