Re: [zfs-discuss] Performance issues with iSCSI under Linux [SEC=UNCLASSIFIED]

2010-10-14 Thread Wilkinson, Alex
0n Thu, Oct 14, 2010 at 09:54:09PM -0400, Edward Ned Harvey wrote: If you happen to find that MegaCLI is the right tool for your hardware, let me know, and I'll paste a few commands here, which will simplify your life. When I first started using it, I found it terribly

Re: [zfs-discuss] Postmortem - file system recovered [SEC=UNCLASSIFIED]

2010-08-29 Thread Wilkinson, Alex
0n Sun, Aug 29, 2010 at 08:09:22PM -0700, Brian wrote: The fix: the trick was to modify mode in in-kernel buffer containing znode_phys_t and then force ZFS to flush it out to disk. Can you give an example of how you did this ? -Alex IMPORTANT: This email remains the property

Re: [zfs-discuss] slog and TRIM support [SEC=UNCLASSIFIED]

2010-08-25 Thread Wilkinson, Alex
0n Wed, Aug 25, 2010 at 02:54:42PM -0400, LaoTsao ?? wrote: IMHO, U want -E for ZIL and -M for L2ARC Why ? -Alex IMPORTANT: This email remains the property of the Department of Defence and is subject to the jurisdiction of section 70 of the Crimes Act 1914. If you have

Re: [zfs-discuss] zpool fragmentation issues? (dovecot) [SEC=UNCLASSIFIED]

2010-01-14 Thread Wilkinson, Alex
0n Thu, Jan 14, 2010 at 08:43:06PM -0800, Michael Keller wrote: The best Mail Box to use under Dovecot for ZFS is MailDir, each email is store as a individual file. Can not agree on that. dbox is about 10x faster - at least if you have 1 messages in one mailbox

Re: [zfs-discuss] ZFS Tutorial slides from USENIX LISA09 [SEC=UNCLASSIFIED]

2010-01-07 Thread Wilkinson, Alex
0n Thu, Jan 07, 2010 at 10:49:50AM -0800, Richard Elling wrote: I have posted my ZFS Tutorial slides from USENIX LISA09 on slideshare.net. http://richardelling.blogspot.com/2010/01/zfs-tutorial-at-usenix-lisa09-slides.html Is there a PDF available of this ? -Alex

Re: [zfs-discuss] rethinking RaidZ and Record size [SEC=UNCLASSIFIED]

2010-01-06 Thread Wilkinson, Alex
0n Wed, Jan 06, 2010 at 02:22:19PM -0800, Richard Elling wrote: Rather, ZFS works very nicely with hardware RAID systems or JBODs iSCSI, et.al. You can happily add the Im not sure how ZFS works very nicely with say for example an EMC Cx310 array ? -Alex IMPORTANT: This email

Re: [zfs-discuss] rethinking RaidZ and Record size [SEC=UNCLASSIFIED]

2010-01-06 Thread Wilkinson, Alex
0n Wed, Jan 06, 2010 at 11:00:49PM -0800, Richard Elling wrote: On Jan 6, 2010, at 10:39 PM, Wilkinson, Alex wrote: 0n Wed, Jan 06, 2010 at 02:22:19PM -0800, Richard Elling wrote: Rather, ZFS works very nicely with hardware RAID systems or JBODs iSCSI, et.al

Re: [zfs-discuss] ZFS + EMC Cx310 Array (JBOD ? Or Singe MetaLUN ?)

2009-05-01 Thread Wilkinson, Alex
0n Thu, Apr 30, 2009 at 11:11:55AM -0500, Bob Friesenhahn wrote: On Thu, 30 Apr 2009, Wilkinson, Alex wrote: I currently have a single 17TB MetaLUN that i am about to present to an OpenSolaris initiator and it will obviously be ZFS. However, I am constantly reading

[zfs-discuss] ZFS + EMC Cx310 Array (JBOD ? Or Singe MetaLUN ?)

2009-04-30 Thread Wilkinson, Alex
Hi all, In terms of best practices and high performance would it be better to present a JBOD to an OpenSolaris initiator or a single MetaLUN ? The scenario is: I currently have a single 17TB MetaLUN that i am about to present to an OpenSolaris initiator and it will obviously be ZFS. However, I

Re: [zfs-discuss] ZFS + EMC Cx310 Array (JBOD ? Or Singe MetaLUN ?)

2009-04-30 Thread Wilkinson, Alex
0n Thu, Apr 30, 2009 at 11:11:55AM -0500, Bob Friesenhahn wrote: On Thu, 30 Apr 2009, Wilkinson, Alex wrote: I currently have a single 17TB MetaLUN that i am about to present to an OpenSolaris initiator and it will obviously be ZFS. However, I am constantly reading

Re: [zfs-discuss] Solved - a big THANKS to Victor Latushkin @ Sun / Moscow

2008-10-09 Thread Wilkinson, Alex
0n Thu, Oct 09, 2008 at 06:37:23AM -0500, Mike Gerdts wrote: FWIW, I belive that I have hit the same type of bug as the OP in the following combinations: - T2000, LDoms 1.0, various builds of Nevada in control and guest domains. - Laptop, VirtualBox 1.6.2, Windows

Re: [zfs-discuss] An slog experiment (my NAS can beat up your NAS)

2008-10-08 Thread Wilkinson, Alex
0n Sat, Oct 04, 2008 at 10:37:26PM -0700, Chris Greer wrote: The big thing here is I ended up getting a MASSIVE boost in performance even with the overhead of the 1GB link, and iSCSI. The iorate test I was using went from 3073 IOPS on 90% sequential writes to 23953 IOPS with

Re: [zfs-discuss] Quantifying ZFS reliability

2008-09-29 Thread Wilkinson, Alex
0n Mon, Sep 29, 2008 at 09:28:53PM -0700, Richard Elling wrote: EMC does not, and cannot, provide end-to-end data validation. So how would measure its data reliability? If you search the ZFS-discuss archives, you will find instances where people using high-end storage also

Re: [zfs-discuss] Sun samba - ZFS ACLs

2008-09-03 Thread Wilkinson, Alex
0n Wed, Sep 03, 2008 at 12:57:52PM -0700, Paul B. Henson wrote: I tried installing the Sun provided samba source code package to try to do some debugging on my own, but it won't even compile, configure fails with: Oh, where did you get that from ? -aW IMPORTANT: This email

Re: [zfs-discuss] GUI support for ZFS root?

2008-08-15 Thread Wilkinson, Alex
0n Thu, Aug 14, 2008 at 09:00:12AM -0700, Rich Teer wrote: Summary: Solaris Express Community Edition (SXCE) is like the OpenSolaris of old; OpenSolaris .xx is apparently Sun's intended future direction for Solaris. Based on what I've heard, I've not tried the latter. If I