Re: [zfs-discuss] suggested ssd for zil

2010-03-01 Thread Brandon High
On Sun, Feb 28, 2010 at 9:22 PM, Erik Trimble wrote: > I'm pretty sure that all SandForce-based SSDs don't use DRAM as their cache, > but take a hunk of flash to use as scratch space instead. Which means that > they'll be OK for ZIL use.  OCZ's  Vertex 2 EX and Vertex 2 both use the > controller,

Re: [zfs-discuss] suggested ssd for zil

2010-03-01 Thread Zhu Han
best regards, hanzhu On Mon, Mar 1, 2010 at 8:47 PM, Eugen Leitl wrote: > On Mon, Mar 01, 2010 at 12:18:45AM -0500, rwali...@washdcmail.com wrote: > > > > ACARD ANS-9010, as mentioned several times here recently (also sold as > > > hyperdrive5) > > > > You are right. I saw that in a recent thr

Re: [zfs-discuss] suggested ssd for zil

2010-03-01 Thread Eugen Leitl
On Mon, Mar 01, 2010 at 12:18:45AM -0500, rwali...@washdcmail.com wrote: > > ACARD ANS-9010, as mentioned several times here recently (also sold as > > hyperdrive5) > > You are right. I saw that in a recent thread. In my case I don't have a > spare bay for it. I'm similarly constrained on so

Re: [zfs-discuss] suggested ssd for zil

2010-03-01 Thread Zhu Han
Erik, That's very useful. Thank you! best regards, hanzhu On Mon, Mar 1, 2010 at 4:48 PM, Erik Trimble wrote: > Zhu Han wrote: > > >> On Mon, Mar 1, 2010 at 1:05 PM, Daniel Carosone > d...@geek.com.au>> wrote: >> >>> Is there anything that is safe to use as a ZIL, faster than the >>>

Re: [zfs-discuss] suggested ssd for zil

2010-03-01 Thread Erik Trimble
Zhu Han wrote: On Mon, Mar 1, 2010 at 1:05 PM, Daniel Carosone > wrote: > Is there anything that is safe to use as a ZIL, faster than the > Mtron but more appropriate for home than a Stec? ACARD ANS-9010, as mentioned several times here recently (also sold

Re: [zfs-discuss] suggested ssd for zil

2010-03-01 Thread Zhu Han
On Mon, Mar 1, 2010 at 1:05 PM, Daniel Carosone wrote: > > Is there anything that is safe to use as a ZIL, faster than the > > Mtron but more appropriate for home than a Stec? > > ACARD ANS-9010, as mentioned several times here recently (also sold as > hyperdrive5) > > +1 for this device. Althoug

Re: [zfs-discuss] suggested ssd for zil

2010-02-28 Thread Erik Trimble
rwali...@washdcmail.com wrote: On Feb 28, 2010, at 11:51 PM, rwali...@washdcmail.com wrote: And what won't work are: - Intel X-25M - Most/all of the consumer drives prices beneath the X-25M all because they use capacitors to get write speed w/o respecting cache flush requests. Sorr

Re: [zfs-discuss] suggested ssd for zil

2010-02-28 Thread rwalists
On Mar 1, 2010, at 12:05 AM, Daniel Carosone wrote: >> Is there anything that is safe to use as a ZIL, faster than the >> Mtron but more appropriate for home than a Stec? > > ACARD ANS-9010, as mentioned several times here recently (also sold as > hyperdrive5) You are right. I saw that in a

Re: [zfs-discuss] suggested ssd for zil

2010-02-28 Thread Daniel Carosone
> Is there anything that is safe to use as a ZIL, faster than the > Mtron but more appropriate for home than a Stec? ACARD ANS-9010, as mentioned several times here recently (also sold as hyperdrive5) -- Dan. pgpeFYm43bUlS.pgp Description: PGP signature

Re: [zfs-discuss] suggested ssd for zil

2010-02-28 Thread rwalists
On Feb 28, 2010, at 11:51 PM, rwali...@washdcmail.com wrote: > And what won't work are: > > - Intel X-25M > - Most/all of the consumer drives prices beneath the X-25M > > all because they use capacitors to get write speed w/o respecting cache flush > requests. Sorry, meant to say "they use c

[zfs-discuss] suggested ssd for zil

2010-02-28 Thread rwalists
If anyone has specific SSD drives they would recommend for ZIL use would you mind a quick response to the list? My understanding is I need to look for: 1) Respect cache flush commands (which is my real question...the answer to this isn't very obvious in most cases) 2) Fast on small writes It s