[zfs-discuss] ZFS ARC blog

2007-01-22 Thread Henk Langeveld
To remind myself what the ARC stands for, I put up an entry on wikipedia and a blog post. The blog can be found at http://hlangeveld.blogspot.com/2007/01/adaptive-replacement-cache-in-zfs.html ___ zfs-discuss mailing list zfs-discuss@opensolaris.org htt

Re: [zfs-discuss] Re: External drive enclosures + Sun Server for massstorage

2007-01-22 Thread Frank Cusack
yes I am an experienced Solaris admin and know all about devfsadm :-) and the older disks command. It doesn't help in this case. I think it's a BIOS thing. Linux and Windows can't see IDE drives that aren't there at boot time either, and on Solaris the SATA controller runs in some legacy mode s

Re: [zfs-discuss] Re: External drive enclosures + Sun Server for massstorage

2007-01-22 Thread Peter Karlsson
Hi Frank, try man devfsadm, it will update devfs with your new disk drives. disks is an older command that does about the same thing. Cheers, Peter Frank Cusack wrote: On January 22, 2007 12:12:19 PM -0600 Brian Hechinger <[EMAIL PROTECTED]> wrote: On Mon, Jan 22, 2007 at 09:39:19AM -0800,

[zfs-discuss] Re: SAS support on Solaris

2007-01-22 Thread Frank Cusack
On January 23, 2007 3:38:32 PM +1100 "James C. McPherson" <[EMAIL PROTECTED]> wrote: /me groans ... more brokenness. I'll pass this onto some others in our team who've been working on a similar issue. Cool. I really hope Solaris gets good SAS support, it's a great technology and a good complem

Re: SAS support on Solaris, was Re: [zfs-discuss] External drive enclosures + Sun Server for mass storage

2007-01-22 Thread James C. McPherson
Frank Cusack wrote: On January 23, 2007 8:53:30 AM +1100 "James C. McPherson" ... Why would you start your numbering at 10? Because you don't have a choice. It is up to the HBA and getting it to do the right thing (ie, what you want) isn't always easy. IIRC, the LSI Logic HBA(s) I had would

Re: SAS support on Solaris, was Re: [zfs-discuss] External drive enclosures + Sun Server for mass storage

2007-01-22 Thread Frank Cusack
On January 23, 2007 8:53:30 AM +1100 "James C. McPherson" <[EMAIL PROTECTED]> wrote: Hi Frank, Frank Cusack wrote: Would you please expand upon this, because I'm really interested in what your thoughts are. since I work on Sun's SAS driver :) SAS is limited, by the Solaris driver, to 16 d

Re: [zfs-discuss] Re: External drive enclosures + Sun Server for massstorage

2007-01-22 Thread Frank Cusack
On January 22, 2007 12:12:19 PM -0600 Brian Hechinger <[EMAIL PROTECTED]> wrote: On Mon, Jan 22, 2007 at 09:39:19AM -0800, Frank Cusack wrote: On January 21, 2007 12:15:22 AM -0200 Toby Thain <[EMAIL PROTECTED]> wrote: > To be clear: the X2100 drives are neither "hotswap" nor "hotplug" under > S

Re: [zfs-discuss] External drive enclosures + Sun Server for mass storage

2007-01-22 Thread Dan Mick
Frank Cusack wrote: On January 19, 2007 10:01:43 PM -0800 Dan Mick <[EMAIL PROTECTED]> wrote: Scouting around a bit, I see SIIG has a 3132 chip, for which they make a card, eSATA II, available in PCIe and PCIe ExpressCard formfactors. I can't promise, but chances seem good that it's supported b

[zfs-discuss] Understanding ::memstat in terms of the ARC

2007-01-22 Thread Jason J. W. Williams
Hello all, I have a question. Below are two ::memstat outputs about 5 days apart. The interesting thing is the "anonymous" memory shows 2GB, though the two major hogs of that memory (two MySQL instances) claim to be consuming about 6.2GB (checked via pmap). Also, it seems like the ARC keeps cree

Re: [zfs-discuss] zpool overlay

2007-01-22 Thread Matthew Ahrens
Luke Schwab wrote: Hi, Does anyone know how to force the [b]zpool[/b] command to perform an overlay when mounting the file system? I get the following error: # zpool import testpool cannot mount '/testpool': directory is not empty use legacy mountpoint to allow this behavior, or use the -O fla

[zfs-discuss] Re: What SATA controllers are people using for ZFS?

2007-01-22 Thread Kelly Kane
I came across this thread hoping to find overwhelming support for the Supermicro MV8 cards I have sitting around. I must warn against the Areca's, my roommate was using one with OpenSolaris and one day the exported raid array shrunk. ZFS reported the pool was corrupted, and that he needed to s

Re: [zfs-discuss] ZFS block squashing (CAS)

2007-01-22 Thread Robert Milkowski
Hello Wade, Monday, January 22, 2007, 8:28:04 PM, you wrote: WSfc> So, WSfc> I am starting to code this CAS block squashing test and I am WSfc> wondering if this is something that would more likely extend open Solaris WSfc> (it does require additional info in zfs metadata that is curren

Re: [zfs-discuss] Synchronous Mount?

2007-01-22 Thread James C. McPherson
Prashanth Radhakrishnan wrote: Is there someway to synchronously mount a ZFS filesystem? > '-o sync' does not appear to be honoured. No there isn't. Why do you think it is necessary? James C. McPherson -- Solaris kernel software engineer, system admin and troubleshooter http://

Re: [zfs-discuss] Synchronous Mount?

2007-01-22 Thread Casper . Dik
>Is there someway to synchronously mount a ZFS filesystem? >'-o sync' does not appear to be honoured. What does that mean? None of the Solaris filesystems support an option "sync". What exactly do you want the sync option to do? Casper ___ zfs-discus

[zfs-discuss] Synchronous Mount?

2007-01-22 Thread Prashanth Radhakrishnan
Hi, Is there someway to synchronously mount a ZFS filesystem? '-o sync' does not appear to be honoured. Thanks, Prashanth ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Re: [zfs-discuss] Re: External drive enclosures + Sun Server for massstorage

2007-01-22 Thread Dan Mick
[EMAIL PROTECTED] wrote: That said, this definition is not always used consistently, as is the case with the x2100. I filed a bug against the docs in this case, and unfortunately it was closed as "will not fix." :-( In the context of a hardware platform it makes little sense to distinguish be

Re: [zfs-discuss] ZFS on PC Based Hardware for NAS?

2007-01-22 Thread James C. McPherson
mike wrote: I would suggest using a CompactFlash card for the OS. I believe it works exactly like IDE, but is more reliable, sucks less power, and frees up a slot for the larger drive... I believe there is a write limit (commonly 10 writes) on CF and similar storage devices, but I don't kno

[zfs-discuss] file not persistent after node bounce when there is a bad disk?

2007-01-22 Thread Peter Buckingham
Hi All, I noticed a behavior on a ZFS filesystem that was confusing to me and was hoping someone can shed some light on it. The summary is that I created two files, waited one minute, bounced the node, and noticed the files weren't there when the node came back. There was a bad disk at the

Re: [zfs-discuss] Re: Re: External drive enclosures + Sun Server for

2007-01-22 Thread Richard Elling
Elm, Rob wrote: For the most part, all SATA devices are hotswapable... If there is some argument about the capability to hotswap in the x2200 M2, it's a limitation of the OS/Drivers and not the hardware. s/hotswappable/hot pluggable/g sigh. -- richard

SAS support on Solaris, was Re: [zfs-discuss] External drive enclosures + Sun Server for mass storage

2007-01-22 Thread James C. McPherson
Hi Frank, Frank Cusack wrote: On January 20, 2007 6:08:07 PM -0800 Richard Elling Frank Cusack wrote: On January 19, 2007 5:59:13 PM -0800 "David J. Orman" card that supports SAS would be *ideal*, Except that SAS support on Solaris is not very good. One major problem is they treat it like s

Re: [zfs-discuss] ZFS on PC Based Hardware for NAS?

2007-01-22 Thread mike
I would suggest using a CompactFlash card for the OS. I believe it works exactly like IDE, but is more reliable, sucks less power, and frees up a slot for the larger drive... On 1/22/07, Elm, Rob <[EMAIL PROTECTED]> wrote: Hello ZFS Discussion Members, I'm looking for help or advice on a proje

Re: [zfs-discuss] Re: Re: Re: Re: External drive enclosures + Sun

2007-01-22 Thread mike
I'm dying here - does anyone know when or even if they will support these? I had this whole setup planned out but it requires eSATA + port multipliers. I want to use ZFS, but currently cannot in that fashion. I'd still have to buy some [more expensive, noisier, bulky internal drive] solution for

Re: [zfs-discuss] Re: External drive enclosures + Sun Server for massstorage

2007-01-22 Thread Toby Thain
On 22-Jan-07, at 4:03 PM, Richard Elling wrote: [EMAIL PROTECTED] wrote: That said, this definition is not always used consistently, as is the case with the x2100. I filed a bug against the docs in this case, and unfortunately it was closed as "will not fix." :-( In the context of a har

Re: [zfs-discuss] Re: External drive enclosures + Sun Server for massstorage

2007-01-22 Thread Toby Thain
On 22-Jan-07, at 5:28 PM, Frank Cusack wrote: > In short, the release note is confusing, so ignore it. Use x2100 > disks as hot pluggable like you've always used hot plug disks in > Solaris. Won't work - some of us have tested it. Again, NO these drives are not hot pluggable and the relea

Re: [zfs-discuss] Re: External drive enclosures + Sun Server for mass

2007-01-22 Thread mike
Areca makes excellent PCI express cards - but probably have zero support in Solaris/OpenSolaris. I use them in both Windows and Linux. Works natively in FreeBSD too. They're the fastest cards on the market I believe still. However probably not very appropriate for this since it's a Solaris-based

Re: [zfs-discuss] ZFS on PC Based Hardware for NAS?

2007-01-22 Thread Bart Smaalders
Elm, Rob wrote: Hello ZFS Discussion Members, I'm looking for help or advice on a project I'm working on: I have a 939 Gigabyte motherboard, with 4 SATAII ports on the nForce4 chipset, and 4 SATA ports off the SIL3114 controller. I recently purchased 5, 320gig SATAII drives... http://tiny

Re: [zfs-discuss] Re: Re: Re: Re: Re: External drive enclosures + Sun

2007-01-22 Thread Frank Cusack
On January 22, 2007 12:45:29 PM -0800 "David J. Orman" <[EMAIL PROTECTED]> wrote: External SAS is pretty much a non-starter on Solaris (today) so I think you're left with iscsi or FC if you need more than just a few drives and you want to use Sun servers instead of building your own. I should a

[zfs-discuss] Re: Re: Re: Re: Re: External drive enclosures + Sun

2007-01-22 Thread David J. Orman
> You can't actually use those adapters in the > x2100/x2200 or even the > x4100/x4200. The slots are "MD2" low profile slots > and the 4 port adapters > require a full height slot. Even the x4600 only has > MD2 slots. So you can > only use 2 port adapters. I think there are esata > cards that

Re: [zfs-discuss] Re: Re: Re: Re: External drive enclosures + Sun

2007-01-22 Thread Frank Cusack
On January 22, 2007 12:03:51 PM -0800 "David J. Orman" <[EMAIL PROTECTED]> wrote: I know it seems ridiculous to HAVE to buy a 3rd party card, but come on it is only $50 or so. Assuming you don't need both pci slots for other uses. I do. Two would have gone to external access for a JBOD (if tha

[zfs-discuss] Re: How much do we really want zpool remove?

2007-01-22 Thread mario heimel
this is a good point, the mirror loses all information about the zpool. this is very important for the ZFS Root pool, i don't know how often i have broken the svm-mirror of the root disks, to clone a system and bring the disk to a other system or use "live upgrade" and so on. This message pos

Re: [zfs-discuss] Re: Re: Re: Re: External drive enclosures + Sun

2007-01-22 Thread Frank Cusack
On January 22, 2007 12:03:51 PM -0800 "David J. Orman" <[EMAIL PROTECTED]> wrote: I'd much prefer Sun products, however - I just expect them to support Sun's flagship OS, and be supported fully. I'm going to look into the X4* series assuming they don't have such problems with supported boot disk

[zfs-discuss] Re: Re: Re: Re: External drive enclosures + Sun

2007-01-22 Thread David J. Orman
> I know it seems ridiculous to HAVE to buy a 3rd party > card, but come > on it is only $50 or so. Assuming you don't need > both pci slots for > other uses. I do. Two would have gone to external access for a JBOD (if that ever gets sorted out, haha) - most external adapters seem to support 4 d

Re: [zfs-discuss] Re: Re: External drive enclosures + Sun Server for mass

2007-01-22 Thread Jason J. W. Williams
Hi David, Glad to help! I don't want to bad-mouth the X2100 M2s that much, because they have been solid. I believe the M2s are made/designed just for Sun by Quanta Computer (http://www.quanta.com.tw/e_default.htm) whereas the mobos in the original X2100 was Tyan Tiger with some slight modificatio

Re: [zfs-discuss] Re: Re: Re: External drive enclosures + Sun Server for

2007-01-22 Thread Frank Cusack
On January 22, 2007 11:38:35 AM -0800 "David J. Orman" <[EMAIL PROTECTED]> wrote: Guess it's time to investigate Supermicro and Tyan solutions, startup-essentials program or not - that makes no hardware sense. I know it seems ridiculous to HAVE to buy a 3rd party card, but come on it is only $5

[zfs-discuss] Re: Re: External drive enclosures + Sun Server for mass

2007-01-22 Thread David J. Orman
> Hi David, > > Depending on the I/O you're doing the X4100/X4200 are > much better > suited because of the dual HyperTransport buses. As a > storage box with > GigE outputs you've got a lot more I/O capacity with > two HT buses than > one. That plus the X4100 is just a more solid box. That much

Re: [zfs-discuss] External drive enclosures + Sun Server for mass storage

2007-01-22 Thread Frank Cusack
On January 19, 2007 10:01:43 PM -0800 Dan Mick <[EMAIL PROTECTED]> wrote: Scouting around a bit, I see SIIG has a 3132 chip, for which they make a card, eSATA II, available in PCIe and PCIe ExpressCard formfactors. I can't promise, but chances seem good that it's supported by si3124 driver in So

Re: [zfs-discuss] Re: External drive enclosures + Sun Server for massstorage

2007-01-22 Thread Jason J. W. Williams
Hi Guys, The original X2100 was a pile of doggie doo-doo. All of our problems with it go back to the atrocious quality of the nForce 4 Pro chipset. The NICs in particular are just crap. The M2s are better, but the MCP55 chipset has not resolved all of its flakiness issues. That being said Sun des

[zfs-discuss] Re: Re: Re: External drive enclosures + Sun Server for

2007-01-22 Thread David J. Orman
> On January 22, 2007 11:19:40 AM -0800 "David J. > Orman" > <[EMAIL PROTECTED]> wrote: > > I'm very confused now. Do the x2200m2s support "hot > plug" of drives or > > not? I can't believe it's that confusing/difficult. > They do or they > > don't. > > Running Solaris, they do not. Wow. What wa

Re: [zfs-discuss] Re: External drive enclosures + Sun Server for mass

2007-01-22 Thread Jason J. W. Williams
Hi David, Depending on the I/O you're doing the X4100/X4200 are much better suited because of the dual HyperTransport buses. As a storage box with GigE outputs you've got a lot more I/O capacity with two HT buses than one. That plus the X4100 is just a more solid box. The X2100 M2 while a vast im

RE: [zfs-discuss] Re: Re: External drive enclosures + Sun Server for

2007-01-22 Thread Elm, Rob
For the most part, all SATA devices are hotswapable... If there is some argument about the capability to hotswap in the x2200 M2, it's a limitation of the OS/Drivers and not the hardware. Sincerely, Rob Elm System Analyst Clark Consulting 3600 American Boulevard West Bloomington, MN 55431 [EM

Re: [zfs-discuss] Re: Re: External drive enclosures + Sun Server for

2007-01-22 Thread Frank Cusack
On January 22, 2007 11:19:40 AM -0800 "David J. Orman" <[EMAIL PROTECTED]> wrote: I'm very confused now. Do the x2200m2s support "hot plug" of drives or not? I can't believe it's that confusing/difficult. They do or they don't. Running Solaris, they do not. I don't care if I can just yank a d

[zfs-discuss] Re: External drive enclosures + Sun Server for mass

2007-01-22 Thread David J. Orman
> Not to be picky, but the X2100 and X2200 series are > NOT > designed/targeted for disk serving (they don't even > have redundant power > supplies). They're compute-boxes. The X4100/X4200 > are what you are > looking for to get a flexible box more oriented > towards disk i/o and > expansion. I

Re: [zfs-discuss] Re: External drive enclosures + Sun Server for massstorage

2007-01-22 Thread Frank Cusack
> In short, the release note is confusing, so ignore it. Use x2100 > disks as hot pluggable like you've always used hot plug disks in > Solaris. Again, NO these drives are not hot pluggable and the release note is accurate. PLEASE get a system to test. Or take our word for it. hmm I think I

[zfs-discuss] ZFS block squashing (CAS)

2007-01-22 Thread Wade . Stuart
So, I am starting to code this CAS block squashing test and I am wondering if this is something that would more likely extend open Solaris (it does require additional info in zfs metadata that is currently reserved space for future, ie zfs revision++) or if I should code against the FUSE

[zfs-discuss] Re: Re: External drive enclosures + Sun Server for

2007-01-22 Thread David J. Orman
> Hi Frank, > > I'm sure Richard will check it out. He's a very good > guy and not > trying to jerk you around. I'm sure the hostility > isn't warranted. :-) > > Best Regards, > Jason I'm very confused now. Do the x2200m2s support "hot plug" of drives or not? I can't believe it's that confusing

Re: [zfs-discuss] Re: External drive enclosures + Sun Server for massstorage

2007-01-22 Thread Frank Cusack
I certainly did NOT mean any hostility whatsoever. I highly value what Richard offers in this forum. I'm just frustrated at the misinformation which is being presented as authoritative. Repeatedly. But to be clear, in my mind Richard is one of the "good ones" and I eagerly read what he has to

Re: [zfs-discuss] Re: External drive enclosures + Sun Server for massstorage

2007-01-22 Thread Jason J. W. Williams
Hi Frank, I'm sure Richard will check it out. He's a very good guy and not trying to jerk you around. I'm sure the hostility isn't warranted. :-) Best Regards, Jason On 1/22/07, Frank Cusack <[EMAIL PROTECTED]> wrote: On January 22, 2007 10:03:14 AM -0800 Richard Elling <[EMAIL PROTECTED]> wro

Re: [zfs-discuss] Re: External drive enclosures + Sun Server for massstorage

2007-01-22 Thread Frank Cusack
On January 22, 2007 10:03:14 AM -0800 Richard Elling <[EMAIL PROTECTED]> wrote: Toby Thain wrote: > To be clear: the X2100 drives are neither "hotswap" nor "hotplug" under > Solaris. Replacing a failed drive requires a reboot. I do not believe this is true, though I don't have one to test. W

[zfs-discuss] zpool overlay

2007-01-22 Thread Luke Schwab
Hi, Does anyone know how to force the [b]zpool[/b] command to perform an overlay when mounting the file system? I get the following error: # zpool import testpool cannot mount '/testpool': directory is not empty use legacy mountpoint to allow this behavior, or use the -O flag I can mount an ove

Re: [zfs-discuss] Re: External drive enclosures + Sun Server for massstorage

2007-01-22 Thread Richard Elling
[EMAIL PROTECTED] wrote: That said, this definition is not always used consistently, as is the case with the x2100. I filed a bug against the docs in this case, and unfortunately it was closed as "will not fix." :-( In the context of a hardware platform it makes little sense to distinguish be

[zfs-discuss] ZFS on PC Based Hardware for NAS?

2007-01-22 Thread Elm, Rob
Hello ZFS Discussion Members, I'm looking for help or advice on a project I'm working on: I have a 939 Gigabyte motherboard, with 4 SATAII ports on the nForce4 chipset, and 4 SATA ports off the SIL3114 controller. I recently purchased 5, 320gig SATAII drives... http://tinyurl.com/yf5z9o I

Re: [zfs-discuss] Re: External drive enclosures + Sun Server for massstorage

2007-01-22 Thread Frank Cusack
On January 21, 2007 12:15:22 AM -0200 Toby Thain <[EMAIL PROTECTED]> wrote: To be clear: the X2100 drives are neither "hotswap" nor "hotplug" under Solaris. Replacing a failed drive requires a reboot. Also, adding a drive that wasn't present at boot requires a reboot. -frank __

Re: [zfs-discuss] External drive enclosures + Sun Server for mass storage

2007-01-22 Thread Frank Cusack
On January 20, 2007 6:08:07 PM -0800 Richard Elling <[EMAIL PROTECTED]> wrote: Frank Cusack wrote: On January 19, 2007 5:59:13 PM -0800 "David J. Orman" <[EMAIL PROTECTED]> wrote: card that supports SAS would be *ideal*, Except that SAS support on Solaris is not very good. One major problem

Re: [zfs-discuss] External drive enclosures + Sun Server for mass storage

2007-01-22 Thread Frank Cusack
On January 22, 2007 8:15:46 AM -0800 Frank Cusack <[EMAIL PROTECTED]> wrote: On January 21, 2007 7:38:01 AM -0600 Al Hopper <[EMAIL PROTECTED]> wrote: On Sun, 21 Jan 2007, James C. McPherson wrote: ... snip Would you please expand upon this, because I'm really interested in what your thou

[zfs-discuss] Almost lost my data

2007-01-22 Thread Robert Milkowski
Hi. Fortunately I haven't. I reinstalled system to snv_55b (fresh install) on c0d1 disk preserving c0d1s0 slice as there's my home pool. Before re-install home pool was actually an mirror between c0d0s0 and c0d1s0. Unfortunatelly I haven't checked to preserve data on c0d0 so its vtoc was

Re: [zfs-discuss] External drive enclosures + Sun Server for mass storage

2007-01-22 Thread Frank Cusack
On January 21, 2007 7:38:01 AM -0600 Al Hopper <[EMAIL PROTECTED]> wrote: On Sun, 21 Jan 2007, James C. McPherson wrote: ... snip Would you please expand upon this, because I'm really interested in what your thoughts are. since I work on Sun's SAS driver :) Hi James - just the man I

[zfs-discuss] Re: How much do we really want zpool remove?

2007-01-22 Thread Rainer Heilke
> but the only acceptable way is the host based > mirror with vxvm. so we can migrate manuelly in a few > weeks but without downtime. Detaching mirrors is actually easy with ZFS. I've done in several times. Look at: zpool detach pool device The problem here is that the detached side loses all i

Re: [zfs-discuss] Re: ZFS volume is hosing BIOS POST on Ultra20 (BIOS 2.1.7)

2007-01-22 Thread Casper . Dik
>Is there an BIOS uptade for Ultra20 to make it understand EFI? Understanding EFI is perhaps asking too much; but I believe the latest BIOS no longer hangs/crashes when it encountered EFI labels on disks it examines. (All disks it probes) Casper ___

[zfs-discuss] Re: ZFS volume is hosing BIOS POST on Ultra20 (BIOS 2.1.7)

2007-01-22 Thread Robert Milkowski
Is there an BIOS uptade for Ultra20 to make it understand EFI? This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss