On Wed, Nov 4, 2009 at 4:59 AM, Andrew Gabriel <agabr...@opensolaris.org>wrote:
> Peter Teoh wrote: > >> >> I have used fdisk to partition the harddisk: >> >> Total disk size is 60800 cylinders >> Cylinder size is 16065 (512 byte) blocks >> >> Cylinders >> Partition Status Type Start End Length % >> ========= ====== ============ ===== === ====== === >> 1 Active Solaris2 1 2623 2623 4 >> 2 Solaris2 2624 9623 7000 12 >> >> >> and the zpool status: >> >> /root>zpool status >> pool: rpool >> state: ONLINE >> scrub: none requested >> config: >> >> NAME STATE READ WRITE CKSUM >> rpool ONLINE 0 0 0 >> c7d0s0 ONLINE 0 0 0 >> >> errors: No known data errors >> >> >> question is: >> >> a. how to use "zpool add" to add the 2nd partition to rpool - which >> should be c7d0p2, right? >> >> when I did this: >> >> zpool add rpool c7d0p2 >> cannot add to 'rpool': root pool can not have multiple vdevs or separate >> logs >> >> what do u mean by "separate logs"? >> > > That is the right command. > > However, the rpool as a special case is not permitted to be RAID 0 > (multiple vdevs) as you were attempting, only RAID 1 (mirrors). > > > >> b. assuming that it is NOT possible to add the 2nd partition to the >> zpool rpool, then how do I used fdisk (or whatever) to modify the partition >> table, so that the entire disk belong to the zpool rpool - instead of just >> c7d0p1 now allocated to zpool rpool? >> > > It can be done by careful use of fdisk (with some risk of blowing away the > data if you get it wrong), but I've seen other email threads here that > indicate ZFS then won't mount the pool, because the two labels at the end of > the partition can't be found anymore (having moved where the end of the > partition is). > > You could create a separate zpool in the spare fdisk partition. Not good > for performance, but probably fine for infrequently accessed data. > I created a separate zpool via "zpool create mypool" (after being unsuccessful with "zpool create mypool c7d0s1", gave some error message, then I tried c7d0s2, and it indicate being identical to c7d0s0 (??? confused me), and then c7d0s3, c7d0s4 etc....all gave error messages. my assumption: so long as there is error message, nothing harmful/persistent is done.) and it has no error. zpool status indicated two pool of 20G identically ---> confused me completey. why 20G, as I had not specified anything in the command line. and "zpool create mypool -m /mountpoint c7d0s1" was not successful as well. anyway....after i reboot.....the MBR is corrupted, and only the symbol "GRUB" appeared on the left hand side of screen. Booting up with a livecd, and then "zpool create mypool c7d0" gives error like "/dev/dsk/c7d0s0 is part of exported or potentially active ZFS pool rpool" and repeated two more times for c7d0s2 and c7d0s8. what are all these different slices??? i used fdisk to create the first s0: 20G, and then fdisk 2nd partition as 100G (approx) but cannot use this partition at all throughout. Bottomline is that the rpool have about 16G of data which I badly need to retained/retreved.....hopefully it is not all gone. so how to retrieve back the data?????? thank you very much :-). > > -- > Andrew > -- Regards, Peter Teoh
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