Re: [zfs-discuss] pools are zfs file systems?

2006-07-15 Thread Jeff Bonwick
> Can anyone tell me why pool created with zpool are also zfs file systems > (and mounted) which can be used for storing files? It would have been > more transparent if pool would not allow the storage of files. Grab a cup of coffee and get comfortable. Ready? Oh, what a can of worms this was.

[zfs-discuss] zvol of files for Oracle?

2006-07-15 Thread Robert Milkowski
Hello zfs-discuss, What would you rather propose for ZFS+ORACLE - zvols or just files from the performance standpoint? -- Best regards, Robert mailto:[EMAIL PROTECTED] http://milek.blogspot.com ___

[zfs-discuss] Re: pools are zfs file systems?

2006-07-15 Thread Adrian Saul
when playing with ZFS to try and come up with some standards for using it in our environment I also disliked having the pool directory mounted when my intentions were not to us it, but subdivide the space with in it. Simple fix: zpool create data zfs create data/share zfs create data/oracle zf

Re: [zfs-discuss] pools are zfs file systems?

2006-07-15 Thread David Magda
On Jul 15, 2006, at 04:31, Jeff Bonwick wrote: Grab a cup of coffee and get comfortable. Ready? Oh, what a can of worms this was. Between weblogs and this mailing list, there seems to be a lot of talk about the "whys" on the design of ZFS. Being around for the public 'birth' of a new fil

[zfs-discuss] Mirroring better with RAID-Z?

2006-07-15 Thread David Abrahams
I have lots to learn, so this question may be riddled with misconceptions, but here goes: My understanding is that ordinary RAID-1 is only really resilient to the extent that you can tell which of the two disks has the bad data (e.g. if one whole disk is smoked, it's easy). Is mirroring

[zfs-discuss] Hardware compatibility list for Open Solaris ZFS

2006-07-15 Thread Kieran
I have seen the recommendation for the Marvell storage controller. http://www.supermicro.com/products/accessories/addon/AoC-SAT2-MV8.cfm I know that about a year ago some Sun folks were recommending a Nvidia chipset but I assume that would have changed or been expanded over a year. How could

Re: [zfs-discuss] How to monitor ZFS ?

2006-07-15 Thread Torrey McMahon
eric kustarz wrote: martin wrote: How could i monitor zfs ? or the zpool activity ? I want to know if anything wrong is going on. If i could receive those warning by email, it would be great :) For pool health: # zpool status -x all pools are healthy # To monitor activity, use 'zpool i

Re: [zfs-discuss] Mirroring better with RAID-Z?

2006-07-15 Thread Richard Elling
David Abrahams wrote: I have lots to learn, so this question may be riddled with misconceptions, but here goes: My understanding is that ordinary RAID-1 is only really resilient to the extent that you can tell which of the two disks has the bad data (e.g. if one whole disk is smoked, it's

Re: [zfs-discuss] Hardware compatibility list for Open Solaris ZFS

2006-07-15 Thread Richard Elling
Kieran wrote: I have seen the recommendation for the Marvell storage controller. http://www.supermicro.com/products/accessories/addon/AoC-SAT2-MV8.cfm This uses the Marvell 88SX6081, which is supported by the marvell88sx(7D0 driver in Solaris. This is the same SATA controller chip used in th

[zfs-discuss] half duplex read/write operations to disk sometimes?

2006-07-15 Thread Sean Meighan
Hi Roch; thanks for the discussion yesterday. I said I would plot the iostat data, here it is. The strange thing is the seeming half duplex operation of ZFS. Here is a 45 minute plot of %zpool iostat 1 The x-axis is data gathered every second. Note that when the write cycle seems to start at