Re: [zfs-discuss] Re: recovered state after system crash

2007-05-05 Thread Neil . Perrin
kyusun Chang wrote: Does ZFS recover all file system transactions which it returned with success since the last commit of TxG, which implis that ZIL must flush log records for each successful file system transaction before it returns to caller so that t can replay the filesystem tra

[zfs-discuss] Re: Re: simple Raid-Z question

2007-05-05 Thread Anders Sjögren
>No one has said that you can't increase the size of a zpool. What can't >be increased is the size of a RAID-Z vdev (except by increasing the size >of all of the components of the RAID-Z). You have created additional >RAID-Z vdevs and added them to the pool. If following is nonsense, please bear w

[zfs-discuss] Re: Optimal strategy (add or replace disks) to build a cheap and raidz?

2007-05-05 Thread Orvar Korvar
What brand is your 8 port satacontroller? I want one sata controller too, but heard that Solaris is picky about the model. All controllers doesnt work. Your does? This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@open

[zfs-discuss] External eSata ZFS raid possible?

2007-05-05 Thread Orvar Korvar
Is this possible? I want an external case with 4 HD in, each having an individual eSata cable. I plug in this case only when needed (each HD plugs into my PC separately), and do something like ">import ZFS pool" and use my ZFS raid. When done, I unplug it with ">export ZFS pool" or something si

Re: [zfs-discuss] Issue with adding existing EFI disks to a zpool

2007-05-05 Thread Manoj Joseph
Mario Goebbels wrote: do it". So I added the disk using the zero slice notation (c0d0s0), as suggested for performance reasons. I checked the pool status and noticed however that the pool size didn't raise. I believe you got this wrong. You should have given ZFS the whole disk - c0d0 and not a

Re: [zfs-discuss] Motley group of discs?

2007-05-05 Thread Manoj Joseph
Lee Fyock wrote: least this year. I'd like to favor available space over performance, and be able to swap out a failed drive without losing any data. Lee Fyock later wrote: In the mean time, I'd like to hang out with the system and drives I have. As "mike" said, my understanding is that zfs wo

[zfs-discuss] Re: recovered state after system crash

2007-05-05 Thread kyusun Chang
> > > Does ZFS recover all file system transactions which > it returned with success > > since the last commit of TxG, which implis that ZIL > must flush log records for > > each successful file system transaction before it > returns to caller so that > t can replay > > the filesystem transaction

[zfs-discuss] Re: Very Large Filesystems

2007-05-05 Thread JS
> What's the maximum filesystem size you've used in production environment? How > did the experience come out? I have a 26tb pool that will be upgraded to 39tb in the next couple of months. This is the backend for Backup images. The ease of managing this sort of expanding storage is a little b

[zfs-discuss] Re: ZFS and Oracle db production deployment

2007-05-05 Thread JS
Why did you choose to deploy the database on ZFS ? -On disk consistancy was big - one of our datacenters was having power problems and the systems would sometimes drop live. I had a couple of instances of data errors with VXVM/VXFS and we had to restore from tape. -zfs snapshot saves us many hour

Re: [zfs-discuss] Issue with adding existing EFI disks to a zpool

2007-05-05 Thread Jonathan Edwards
On May 5, 2007, at 09:34, Mario Goebbels wrote: I spend yesterday all day evading my data of one of the Windows disks, so that I can add it to the pool. Using mount-ntfs, it's a pain due to its slowness. But once I finished, I thought "Cool, let's do it". So I added the disk using the zero

Re: [zfs-discuss] Optimal strategy (add or replace disks) to build a cheap and raidz?

2007-05-05 Thread Richard Elling
Harold Ancell wrote: At 04:41 AM 5/5/2007, Christian Rost wrote: My Question now: Is the second way reasonable or do i missing some things? Anything else to consider? Mirroring is the simplest way to expand in size and performance. Pardon me for jumping into a group I just joined, but I sen

Re: [zfs-discuss] Optimal strategy (add or replace disks) to build a cheap and raidz?

2007-05-05 Thread Brian Hechinger
On Sat, May 05, 2007 at 02:41:28AM -0700, Christian Rost wrote: > > - Buying "cheap" 8x250 GB SATA disks at first and replacing them from time to > time by 750 GB > or bigger disks. Disadvantage: At the end i've bought 8x250 GB + 8x750 GB > Harddisks. Look at it this way. The amount you spen

Re: [zfs-discuss] Optimal strategy (add or replace disks) to build a cheap and raidz?

2007-05-05 Thread Harold Ancell
At 04:41 AM 5/5/2007, Christian Rost wrote: >My Question now: >Is the second way reasonable or do i missing some things? Anything else to >consider? Pardon me for jumping into a group I just joined, but I sense you are asking sort of a "philosophy of buying" question, and I have a different one

[zfs-discuss] Issue with adding existing EFI disks to a zpool

2007-05-05 Thread Mario Goebbels
I spend yesterday all day evading my data of one of the Windows disks, so that I can add it to the pool. Using mount-ntfs, it's a pain due to its slowness. But once I finished, I thought "Cool, let's do it". So I added the disk using the zero slice notation (c0d0s0), as suggested for performance

Re: [zfs-discuss] Re: Motley group of discs?

2007-05-05 Thread Toby Thain
On 5-May-07, at 2:07 AM, MC wrote: That's a lot of talking without an answer :) internal EIDE 320GB (boot drive), internal 250, 200 and 160 GB drives, and an external USB 2.0 600 GB drive. So, what's the best zfs configuration in this situation? RAIDZ uses disk space like RAID5. So the

[zfs-discuss] Re: Optimal strategy (add or replace disks) to build a cheap and raidz?

2007-05-05 Thread MC
You could estimate how long it will take for ZFS to get the feature you need, and then buy enough space so that you don't run out before then. Alternatively, Linux mdadm DOES support growing a RAID5 array with devices, so you could use that instead. This message posted from opensolaris.org _

[zfs-discuss] Optimal strategy (add or replace disks) to build a cheap and raidz?

2007-05-05 Thread Christian Rost
Hello, i have an 8 port sata-controller and i don't want to spend the money for 8 x 750 GB Sata Disks right now. I'm thinking about an optimal way of building a growing raidz-pool without loosing any data. As far as i know there are two ways to achieve this: - Adding 750 GB Disks from time to ti