Re: [zfs-discuss] suggested ssd for zil

2010-03-01 Thread Zhu Han
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 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.

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 d...@geek.com.au mailto:d...@geek.com.au 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

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 erik.trim...@sun.com wrote: Zhu Han wrote: On Mon, Mar 1, 2010 at 1:05 PM, Daniel Carosone d...@geek.com.au mailto: d...@geek.com.au wrote: Is there anything that is safe to use

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 some of

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 eu...@leitl.org 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

Re: [zfs-discuss] suggested ssd for zil

2010-03-01 Thread Brandon High
On Sun, Feb 28, 2010 at 9:22 PM, Erik Trimble erik.trim...@sun.com 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

[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

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 cache to

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 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 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.