It isn't the capacity of the device (FAT32 supports up to 137GB drives) but
the FILESIZE limitation. No one file can exceed 4GB. That is the rub with
a vm. Except for legacy OSs like Win98, a 4GB .vhd file is not generally
useful. It is impossible for a Vista vm.

"Vincent" wrote in message @TK2MSFTNGP04.phx.gbl...
>I guess... but it works... Maybe some benchmark could be used to determine
> speeds... (FAT vs NTFS)
>
> I think FAT32 can handle more than 8Gb.... ... can't...? It work with
> external drives... FAT32, more than 32Gb without troubles... and using
> Win98...
>
>
>
>
> Colin Barnhorst escribió en el mensaje de
> noticias
> 7EC34BB7-58CB-4A74-B162-0F4F6F75A16E@microsoft.com...
>> But the overhead for NTFS is high.
>>
>> "Vincent" wrote in message
>> @TK2MSFTNGP05.phx.gbl...
>> > Actually they can be formatted with NTFS... I did it and works fine....
>> > You can even use NTFS compression... but it's a little slow... (I did
>> > it...)
>> >
>> >
>> > Colin Barnhorst escribió en el mensaje de
>> > noticias
>> > B3F756A7-ADE6-4AE7-BB06-E47E3DE36945@microsoft.com...
>> >> The problem with flash drives is that they use FAT32 so regardless of
>> > their
>> >> size (8, 16, 32) the file size limit is 4GB.
>> >>
>> >> "Vincent" wrote in message
>> >> news:%23WPuLfcdIHA.5200@TK2MSFTNGP06.phx.gbl...
>> >> > What about using an external flash drive for the VHD? It has the
>> >> > same
>> >> > transfer speed than an external hard disk (USB 2.0) and could be
>> >> > more
>> >> > reliable 'cause it's not affected by shocks. Now we have 8 and 16 gb
>> > flash
>> >> > drives.... and could be used (I guess). It could be better (but
>> >> > expensive)
>> >> > to use the new SSD.. (solid state drives) which are prtty much the
> same
>> >> > technology than USB drives (Flash) but has better performance....
>> >> > (so
>> > they
>> >> > said)
>> >> >
>> >> >
>> >> > Steve Jain escribió en el mensaje de
> noticias
>> >> > lvhrr39qifko9t8ofu12ks6rn0a746ffu9@4ax.com...
>> >> >> On Thu, 21 Feb 2008 01:10:30 -0800, "Timothy Daniels"
>> >> >> wrote:
>> >> >>
>> >> >> >"Steve Jain" wrote:
>> >> >> >> "Timothy Daniels" wrote:
>> >> >> >>
>> >> >> >>>"Paul Adare" wrote:
>> >> >> >>>> Timothy Daniels wrote:
>> >> >> >>>>
>> >> >> >>>>> When running VMs, would it be better to run them
>> >> >> >>>>> in a separate partition rather than in the same partition
>> >> >> >>>>> as the hosting OS? Would the argument for or against
>> >> >> >>>>> be the same as putting data on a separate partition?
>> >> >> >>>>
>> >> >> >>>> The partition you store your VHDs on makes no
>> >> >> >>>> difference at all. What makes a difference is storing
>> >> >> >>>> them on a disk that is separate from the disk that
>> >> >> >>>> your OS runs on and is as fast as you can manage.
>> >> >> >>>
>> >> >> >>> It sounds like the same reason that one would
>> >> >> >>>put a swap file on another (and faster) HD. If so,
>> >> >> >>>I guess the outermost partition on the HD would
>> >> >> >>>be the best partition for VMs because it spins at a
>> >> >> >>>faster lineal speed than inner partitions and can
>> >> >> >>>therefore transfer data faster to and from cache?
>> >> >> >>>
>> >> >> >>>*TimDaniels*
>> >> >> >>>
>> >> >> >>
>> >> >> >> I don't think that would help much, could be worse.
>> >> >> >> Since your host OS is using the other partition, you're
>> >> >> >> going to have a lot head travel between partitions as
>> >> >> >> the host OS and VM are reading and writing.
>> >> >> >>
>> >> >> >> A better idea is to use a 2nd hard drive, internal or
>> >> >> >> external, if you want better VM performance.
>> >> >> >
>> >> >> > I meant (and should have written) "on the 2nd HD",
>> >> >> >as in:
>> >> >> > "...a swap file on another (and faster) HD. If so,
>> >> >> > I guess the outermost partition on the [2nd] HD would
>> >> >> > be the best partition for VMs ..."
>> >> >> >
>> >> >> > Would you agree with that revised statement?
>> >> >> >
>> >> >> >*TimDaniels*
>> >> >> >
>> >> >>
>> >> >> Yes, I agree. I always try to have at least one extra drive for my
>> >> >> VMs. I try to spread the ones I use concurrently out across
> multiple
>> >> >> drives for best performance.
>> >> >>
>> >> >> --
>> >> >> Cheers,
>> >> >> Steve Jain, Virtual Machine MVP
>> >> >> http://vpc.essjae.com/
>> >> >> I do not work for Microsoft.
>> >> >
>> >> >
>> >>
>> >
>> >
>>
>
>

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