From: De La Salle, Alex (alex.de.la.salle@uk.fid-intl.com)
Date: Fri Jun 14 2002 - 07:18:40 EDT
Firstly thank you to all that have responded, perhaps I asked the wrong
questions really.
Currently we have a E420R running Solaris 2.6, 4x450Mhz CPUs and 4Gb memory,
we have a T3 attached (via fibre) to this that is setup as one raid5 lun
accross the 9 disks. This is then split via VxVM into individual
filesystems.
I'm am currently looking to solve the problem with it blocking on IO. Now
one idea I had was to spread the filesystems over multiple controllers AND
change to RAID1+0. The other idea we have is to attach the system to IBM's
shark storage... My concern is we have fibre connect at the moment and we
are trashing it, albeit a single loop, have any of you had this problem with
SAS (or other IO intensive apps) and how did you resolve it? Whats the best
sun hardware for multiple controller setups... We know we don't need much
more, if any processing power.
The V880 looked like a possible solution, but I must of missed the
controller details on the Sun website, seems it can only have two
controllers for the interal storage (6 disks per controller).
Thanks again for all the initial replies.
Alex
> Alex de la Salle
> Unix Technical Services,
> Fidelity Investments Limited.
>
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> -----Original Message-----
> From: De La Salle, Alex [mailto:alex.de.la.salle@uk.fid-intl.com]
> Sent: 12 June 2002 15:30
> To: 'sunmanagers@sunmanagers.org'
> Subject: V880 / SAS / what storage!?
>
>
> Dear Sun Managers,
>
> Trying to find out a few bits of info at the moment... I'll
> keep this short
> and to the point...
>
> 1) Sun V880 internal storage, the spec says it supports 12x
> 36/72Gb disks
> connected via the internal FCAL, does anyone know how many
> separate physical
> controllers this equates to?
>
> 2) Anyone got a SAS implementation? If yes, have you opted
> for dedicated
> storage over multiple controllers or have you implemented it on a SAN?
>
> In short I am looking at ways to improve a SAS
> implementation, mainly in the
> IO performance area, and wanted to know what experiences you
> guys n gals
> had?
>
> Thanks in advance, Alex
>
> > Alex de la Salle
> > Unix Technical Services
> >
> > * E-Mail : alex.de.la.salle@uk.fid-intl.com
> >
> Fidelity Investments Limited, Fidelity Investment Services
> Limited, Fidelity
> Pensions Management and Fidelity Investments International
> are all regulated
> in the UK by the FSA and have their registered offices at
> Oakhill House, 130
> Tonbridge Road, Hildenborough, Tonbridge, Kent TN11 9DZ. Tel
> 01732 361144.
> Fidelity only gives information on its products and does not
> give investment
> advice to private clients based on individual circumstances.
> Any comments
> or statements made are not necessarily those of Fidelity. The
> information
> transmitted is intended only for the person or entity to which it is
> addressed and may contain confidential and/or privileged
> material. If you
> received this in error, please contact the sender and delete
> the material
> from any computer. All e-mails sent from or to Fidelity may
> be subject to
> our monitoring procedures.
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