Re: [zfs-discuss] partioned cache devices

2013-03-19 Thread Ian Collins
Andrew Werchowiecki wrote: Thanks for the info about slices, I may give that a go later on. I’m not keen on that because I have clear evidence (as in zpools set up this way, right now, working, without issue) that GPT partitions of the style shown above work and I want to see why it doesn’t

Re: [zfs-discuss] partioned cache devices

2013-03-19 Thread Cindy Swearingen
above work and I want to see why it doesn’t work in my set up rather than simply ignoring and moving on. *From:*Fajar A. Nugraha [mailto:w...@fajar.net] *Sent:* Sunday, 17 March 2013 3:04 PM *To:* Andrew Werchowiecki *Cc:* zfs-discuss@opensolaris.org *Subject:* Re: [zfs-discuss] partioned cache

Re: [zfs-discuss] partioned cache devices

2013-03-19 Thread Andrew Gabriel
Andrew Werchowiecki wrote: Total disk size is 9345 cylinders Cylinder size is 12544 (512 byte) blocks Cylinders Partition StatusType Start End Length% = ==

Re: [zfs-discuss] partioned cache devices

2013-03-19 Thread Jim Klimov
On 2013-03-19 20:38, Cindy Swearingen wrote: Hi Andrew, Your original syntax was incorrect. A p* device is a larger container for the d* device or s* devices. In the case of a cache device, you need to specify a d* or s* device. That you can add p* devices to a pool is a bug. I disagree; at

Re: [zfs-discuss] partioned cache devices

2013-03-19 Thread Andrew Gabriel
On 03/19/13 20:27, Jim Klimov wrote: I disagree; at least, I've always thought differently: the d device is the whole disk denomination, with a unique number for a particular controller link (c+t). The disk has some partitioning table, MBR or GPT/EFI. In these tables, partition p0 stands for

Re: [zfs-discuss] partioned cache devices

2013-03-19 Thread Jim Klimov
On 2013-03-19 22:07, Andrew Gabriel wrote: The GPT partitioning spec requires the disk to be FDISK partitioned with just one single FDISK partition of type EFI, so that tools which predate GPT partitioning will still see such a GPT disk as fully assigned to FDISK partitions, and therefore less

Re: [zfs-discuss] partioned cache devices

2013-03-18 Thread Andrew Werchowiecki
To: Andrew Werchowiecki Cc: zfs-discuss@opensolaris.org Subject: Re: [zfs-discuss] partioned cache devices On Sun, Mar 17, 2013 at 1:01 PM, Andrew Werchowiecki andrew.werchowie...@xpanse.com.aumailto:andrew.werchowie...@xpanse.com.au wrote: I understand that p0 refers to the whole disk

Re: [zfs-discuss] partioned cache devices

2013-03-17 Thread Fajar A. Nugraha
On Sun, Mar 17, 2013 at 1:01 PM, Andrew Werchowiecki andrew.werchowie...@xpanse.com.au wrote: I understand that p0 refers to the whole disk... in the logs I pasted in I'm not attempting to mount p0. I'm trying to work out why I'm getting an error attempting to mount p2, after p1 has

Re: [zfs-discuss] partioned cache devices

2013-03-16 Thread Andrew Werchowiecki
It's a home set up, the performance penalty from splitting the cache devices is non-existant, and that work around sounds like some pretty crazy amount of overhead where I could instead just have a mirrored slog. I'm less concerned about wasted space, more concerned about amount of SAS ports I

Re: [zfs-discuss] partioned cache devices

2013-03-16 Thread Richard Elling
On Mar 16, 2013, at 7:01 PM, Andrew Werchowiecki andrew.werchowie...@xpanse.com.au wrote: It's a home set up, the performance penalty from splitting the cache devices is non-existant, and that work around sounds like some pretty crazy amount of overhead where I could instead just have a

Re: [zfs-discuss] partioned cache devices

2013-03-15 Thread Ian Collins
Andrew Werchowiecki wrote: Hi all, I'm having some trouble with adding cache drives to a zpool, anyone got any ideas? muslimwookie@Pyzee:~$ sudo zpool add aggr0 cache c25t10d1p2 Password: cannot open '/dev/dsk/c25t10d1p2': I/O error muslimwookie@Pyzee:~$ I have two SSDs in the system,

Re: [zfs-discuss] partioned cache devices

2013-03-15 Thread Edward Ned Harvey (opensolarisisdeadlongliveopensolaris)
From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- boun...@opensolaris.org] On Behalf Of Andrew Werchowiecki muslimwookie@Pyzee:~$ sudo zpool add aggr0 cache c25t10d1p2 Password: cannot open '/dev/dsk/c25t10d1p2': I/O error muslimwookie@Pyzee:~$ I have two SSDs in the