I would be interested in anyone doing this or thinking about doing this in an EMC storage environment. Just attended a 1/2 seminar by EMC where they espoused virtual disks that could/would expand when needed.
One thing shown was disturbing (to me at least). They said MS was targeting 25GB mailboxes in 3 years (effort to keep up with Google). Comments? Thx in advance On Thu, Jul 22, 2010 at 12:01 PM, Michael B. Smith <mich...@smithcons.com>wrote: > Note: I am not recommending you go against published guidance from MSFT. > > > > That being said – that recommendation is primarily against the original > Hyper-V. VHDs created by the original version of Hyper-V, or disks that have > been upgraded from Virtual Server or Virtual PC, expand quite slowly. > > > > Disks that are created by Hyper-V R2 are only a couple of percentage points > slower than fixed size VHDs. Negligible. > > > > I know a number of companies that are running Hyper-V R2 installations with > variable disks. So far, at least, it hasn’t been an issue. > > > > I don’t know how (or even if) this impacts VMware or XenServer. > > > > So….to tie this back to your question, if the storage virtualization causes > Exchange to notice whenever the disk expands, it’s not a good fit. > > > > Regards, > > > > Michael B. Smith > > Consultant and Exchange MVP > > http://TheEssentialExchange.com > > > > *From:* Sobey, Richard A [mailto:r.so...@imperial.ac.uk] > *Sent:* Thursday, July 22, 2010 6:35 AM > > *To:* MS-Exchange Admin Issues > *Subject:* Guidance on disks for Exchange 2010 > > > > In the virtualisation guide for Exchange 2010, in the section on storage > this is written: > > > > *Virtual disks that dynamically expand aren't supported by Exchange.* > > > > Does anyone know if this also applies to a disk presented to a physical > server via some form of storage virtualisation appliance? Said disk would be > presented as 100GB, for example, and the OS would see 100GB, but would grow > to reach this size at the storage level. > > > > Thanks > > > > Richard > > > -- smsadm
