Re: [zfs-discuss] Nested ZFS file systems are not visible over an NFS export

2009-02-08 Thread Sanjeev
Sriram, "sharenfs" is an inherited property. Looks like in your case you set the "sharenfs=on" on datapool/vmwarenfs after the underlying filesystems were created. If you had set the "sharenfs=on" before creating the underlying filesystems, then the property would have been inherited by the chil

Re: [zfs-discuss] A question on "non-consecutive disk failures"

2009-02-08 Thread Sanjeev
Sriram, On Sun, Feb 08, 2009 at 12:04:22AM +0530, Sriram Narayanan wrote: > >From the presentation "ZFS - The last word in filesystems", Page 22 > "In a multi-disk pool, ZFS survives any non-consecutive disk failures" > > Questions: > If I have a 3 disk RAIDZ with disks A, B and C, then: >

Re: [zfs-discuss] terabyte or terror-byte disk drives

2009-02-08 Thread Brian Hechinger
> I've always felt squeamish when I had to move boxes with spinning > disks, > or when I had to watch someone else do it. Thanks for justifying my > paranoia... and good luck with the replacement drives. This reminds me of a story. Many years ago a friend of mine had to move some servers from

Re: [zfs-discuss] Max size of log device?

2009-02-08 Thread David Magda
On Feb 8, 2009, at 16:12, Vincent Fox wrote: > Do you think having log on a 15K RPM drive with the main pool > composed of 10K RPM drives will show worthwhile improvements? Or am > I chasing a few percentage points? Another important question is whether it would be sufficient to purchase o

Re: [zfs-discuss] Max size of log device?

2009-02-08 Thread Mattias Pantzare
On Sun, Feb 8, 2009 at 22:12, Vincent Fox wrote: > Thanks I think I get it now. > > Do you think having log on a 15K RPM drive with the main pool composed of 10K > RPM drives will show worthwhile improvements? Or am I chasing a few > percentage points? > > I don't have money for new hardware &

Re: [zfs-discuss] Max size of log device?

2009-02-08 Thread Vincent Fox
Thanks I think I get it now. Do you think having log on a 15K RPM drive with the main pool composed of 10K RPM drives will show worthwhile improvements? Or am I chasing a few percentage points? I don't have money for new hardware & SSD. Just recycling some old components here are and there a

Re: [zfs-discuss] Max size of log device?

2009-02-08 Thread Bob Friesenhahn
On Sun, 8 Feb 2009, Andrew Gabriel wrote: > > Just thinking out loud here, but given such a disk (i.e. one which is > bigger than required), I might be inclined to slice it up, creating a > slice for the log at the outer edge of the disk. The outer edge of the > disk has the highest data rate, and

Re: [zfs-discuss] terabyte or terror-byte disk drives

2009-02-08 Thread Vincent Fox
You were just lucky before and unlucky now. I had a PC back in like Pentium-133 days go CRASH because I moved it too roughly while the drive was spinning. I moved many PC in my life with drive spinning no problems, but I don't COUNT on it and avoid it if humanly possible. Don't people do it a

Re: [zfs-discuss] Max size of log device?

2009-02-08 Thread Andrew Gabriel
Neil Perrin wrote: > On 02/08/09 11:50, Vincent Fox wrote: > >> So I have read in the ZFS Wiki: >> >> # The minimum size of a log device is the same as the minimum size of >> device in >> pool, which is 64 Mbytes. The amount of in-play data that might be stored on >> a log >> device is relati

Re: [zfs-discuss] Max size of log device?

2009-02-08 Thread Neil Perrin
On 02/08/09 11:50, Vincent Fox wrote: > So I have read in the ZFS Wiki: > > # The minimum size of a log device is the same as the minimum size of device > in > pool, which is 64 Mbytes. The amount of in-play data that might be stored on > a log > device is relatively small. Log blocks are fre

[zfs-discuss] Max size of log device?

2009-02-08 Thread Vincent Fox
So I have read in the ZFS Wiki: # The minimum size of a log device is the same as the minimum size of device in pool, which is 64 Mbytes. The amount of in-play data that might be stored on a log device is relatively small. Log blocks are freed when the log transaction (system call) is committe

[zfs-discuss] Drive labels and Solaris 10U6 ZFS install

2009-02-08 Thread Bob Friesenhahn
Yesterday I gained my first experience with installing Solaris 10U6 on on a SPARC workstation with ZFS boot. I had one non-Sun disk (c0t1d0) which was previously used in a Solaris 10U5 install and already had a ZFS partition. Another non-Sun disk (c0t0d0) was brand new. It was my intention t

Re: [zfs-discuss] New RAM disk from ACARD might be interesting

2009-02-08 Thread Tim
On Sat, Feb 7, 2009 at 1:55 AM, Will Murnane wrote: > On Thu, Jan 29, 2009 at 23:00, Will Murnane > wrote: > > *sigh* The 9010b is ordered. Ground shipping, unfortunately, but > > eventually I'll post my impressions of it. > Well, the drive arrived today. It's as nice-looking as it appears in

Re: [zfs-discuss] terabyte or terror-byte disk drives

2009-02-08 Thread David Magda
On Feb 8, 2009, at 09:30, Volker A. Brandt wrote: >> yes, you've guessed it, the drive errors originated when the box was >> moved. A zpool scrub generated thousands of errors on the damaged >> drive. Now it's offline. Al is sad. :( > > [...] > >> Just a heads up - it might just help someone e

Re: [zfs-discuss] terabyte or terror-byte disk drives

2009-02-08 Thread Volker A. Brandt
> yes, you've guessed it, the drive errors originated when the box was > moved. A zpool scrub generated thousands of errors on the damaged > drive. Now it's offline. Al is sad. :( [...] > Just a heads up - it might just help someone else on the list who has > developed bad habits over the year

Re: [zfs-discuss] terabyte or terror-byte disk drives

2009-02-08 Thread Orvar Korvar
Thank you. I will spread the word. -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Re: [zfs-discuss] New RAM disk from ACARD might be interesting

2009-02-08 Thread Orvar Korvar
Too bad. I will follow this thread. Me, and others hope you find a solution. We would like to hear about this setup. -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman

Re: [zfs-discuss] A question on "non-consecutive disk failures"

2009-02-08 Thread Sriram Narayanan
On Sun, Feb 8, 2009 at 1:29 AM, Frank Cusack wrote: > > what mirror? there is no mirror. you have a raidz. you can have 1 > disk failure. Thanks for the correction. I was thinking RAIDZ, but typed "mirror". I have only RAIDZs on my servers. > >> - if disks a and c fail, then I will be be able

Re: [zfs-discuss] A question on "non-consecutive disk failures"

2009-02-08 Thread Sriram Narayanan
On Sun, Feb 8, 2009 at 1:56 AM, Peter Tribble wrote: > No. That quote is part of the discussion of ditto blocks. > > See the following: > > http://blogs.sun.com/bill/entry/ditto_blocks_the_amazing_tape > Thank you, Peter. -- Sriram ___ zfs-discuss mai

[zfs-discuss] ZFS with Veritas DMP?

2009-02-08 Thread Andras Spitzer
Hi, I'm aware that if we talking about DMP on Solaris the preferred way is to use MPxIO, still I have a question if any of you got any experience with ZFS on top of Veritas DMP? Does it work? Is it supported? Any real life experience/tests in this subject? Regards, sendai -- This message post