Hi Joe
In what way were the first HS20 blades and chassis poorly designed?
Thanks
Tom Diroff
Joe Shonk wrote:
I am refering the Drive/Controller... As far as HP or IBM... Both... (for
the HP blades I am refering to the SAS controller)
IBM recommends a SAN basically because disk perfomance sucks and the have
an unusually high failure rate with the drives. Then again, the first HS20
SCSI blades/chassis was poorly designed.
Joe
On 7/19/06, Eldon <u2htdaab@xxxxxxxxx> wrote:
>
> sre you referring to the drive performance on blades? If so, would that
> be HP or IBM?
>
> On 7/19/06, Joe Shonk < joe.shonk@xxxxxxxxx> wrote:
>
> > Even the SCSI 10k drives are not that great... Mostly because the
> > onboard raid controllers are poorly implemented and most do not have a
> > cache.
> >
> >
> > Joe
> >
> >
> > On 7/19/06, Luchette, Jon < JLuchette@xxxxxxxxxxxxxxx> wrote:
> > >
> > > i agree with that. you are limited as to the local drives that
> > > come in blades. many will only have ide drives available so the
peformance
> > > benefits from FC disks are significant...
> > >
> > >
> > > _______________________________________________
> > > *Jon Luchette
> > > * *Emerson Hospital*
> > > *Technology Specialist III*
> > > *Work: 978-287-3369*
> > > *Cell: 978-360-1379*
> > >
> > > jluchette@xxxxxxxxxxxxxxx
> > > *_______________________________________________*
> > >
> > >
> > >
> > > ------------------------------
> > > *From:* thin-bounce@xxxxxxxxxxxxx [mailto: thin-bounce@xxxxxxxxxxxxx]
> > > *On Behalf Of *Jeff Pitsch
> > > *Sent:* Wednesday, July 19, 2006 1:31 PM
> > >
> > > *To:* thin@xxxxxxxxxxxxx
> > > *Subject:* [THIN] Re: SAN Benefits for Citrix
> > >
> > >
> > > I've seen many orgs do this with the older blades strictly because
> > > of the IDE drivers that were in use. They were getting better performance
> > > from the SAN vs the local IDE drives.
> > >
> > >
> > > *Jeff Pitsch
> > > Microsoft MVP - Terminal Server*
> > >
> > > *Forums not enough?
> > > Get support from the experts at your business
> > > **http://jeffpitschconsulting.com*
> > > <http://jeffpitschconsulting.com/>
> > >
> > >
> > >
> > > On 7/19/06, Eldon < u2htdaab@xxxxxxxxx> wrote:
> > >
> > > > on a related note, for those organizations that are using Blades
> > > > for TS\Citrix, are a majority using local blade disks rather than boot
from
> > > > SAN?
> > > >
> > > > On 7/19/06, Jeff Pitsch < jepitsch@xxxxxxxxx> wrote:
> > > > while I agree with what your saying the fact is is that if you
> > > > are implementing a SAN most servers are probably going to have HBA's in
them
> > > > already whether it's for backup or disk access. If your implementing
EMC
> > > > SAN's then feasible and economical aren't usually something they are
> > > > necessarily worried about.
> > > >
> > > >
> > > > *Jeff Pitsch
> > > > Microsoft MVP - Terminal Server*
> > > >
> > > > *Forums not enough?
> > > > Get support from the experts at your business
> > > > **http://jeffpitschconsulting.com*<http://jeffpitschconsulting.com/>
> > > >
> > > >
> > > >
> > > > On 7/19/06, Landin, Mark < Mark.Landin@xxxxxxxxxxxxxxxx> wrote:
> > > >
> > > > > "Cost prohibitive" is a subjective measure and varies by
> > > > > company. Yes, many places do it. That doesn't mean it's feasible or
> > > > > economical in every organization.
> > > > >
> > > > > ------------------------------
> > > > > *From:* thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx]
> > > > > *On Behalf Of *Jeff Pitsch
> > > > > *Sent:* Wednesday, July 19, 2006 9:08 AM
> > > > >
> > > > >
> > > > > *To:* thin@xxxxxxxxxxxxx
> > > > > *Subject:* [THIN] Re: SAN Benefits for Citrix
> > > > >
> > > > >
> > > > >
> > > > there are so many organizations doing boot from SAN that truly
> > > > doubt it is cost prohibitive.
> > > >
> > > >
> > > > *Jeff Pitsch
> > > > Microsoft MVP - Terminal Server*
> > > >
> > > > *Forums not enough?
> > > > Get support from the experts at your business
> > > > **http://jeffpitschconsulting.com*<http://jeffpitschconsulting.com/>
> > > >
> > > >
> > > >
> > > > On 7/19/06, Eldon < u2htdaab@xxxxxxxxx> wrote:
> > > >
> > > > > my understanding is that it was disk cost - the # of spindles
> > > > > needing to be allocated, multiplied by the number of servers booting
from
> > > > > SAN.....
> > > > >
> > > > >
> > > > > On 7/19/06, Luchette, Jon < JLuchette@xxxxxxxxxxxxxxx> wrote:
> > > > > >
> > > > > > right, what is he talking about. because if he is talking
> > > > > > about the hba's then that is not specific to booting from the san,
but just
> > > > > > something that you will need if you want to use your san at all...?
> > > > > >
> > > > > > what is he talking about?
> > > > > >
> > > > > >
> > > > > > _______________________________________________
> > > > > > *Jon Luchette
> > > > > > * *Emerson Hospital*
> > > > > > *Technology Specialist III*
> > > > > > *Work: 978-287-3369*
> > > > > > *Cell: 978-360-1379*
> > > > > >
> > > > > > jluchette@xxxxxxxxxxxxxxx
> > > > > > *_______________________________________________*
> > > > > >
> > > > > >
> > > > > >
> > > > > > ------------------------------
> > > > > > *From:* thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx]
> > > > > > *On Behalf Of *Landin, Mark
> > > > > > *Sent:* Wednesday, July 19, 2006 9:23 AM
> > > > > > *To:* thin@xxxxxxxxxxxxx
> > > > > > *Subject:* [THIN] Re: SAN Benefits for Citrix
> > > > > >
> > > > > >
> > > > > > What cost does he associate with boot-from-SAN?
> > > > > >
> > > > > > ------------------------------
> > > > > > *From:* thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx]
> > > > > > *On Behalf Of *Eldon
> > > > > > *Sent:* Wednesday, July 19, 2006 8:13 AM
> > > > > > *To:* thin@xxxxxxxxxxxxx
> > > > > > *Subject:* [THIN] SAN Benefits for Citrix
> > > > > >
> > > > > >
> > > > > > My organization just installed an EMC SAN and I was thinking
> > > > > > how I could use it to benefit my current (XP FR3) and future
(upgrading to
> > > > > > PS 4) environment. How can I use the SAN to enhance my Citrix
deployment
> > > > > > (currently 15 servers, 250 concurrent users, hardware become
outdated and
> > > > > > soon needs replacement)? I was told by our SAN Admin that booting
new
> > > > > > servers from the SAN would probably be cost prohibitive.
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> > >
> >
> >
>
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