I am new to SX:CE (Solaris 11) and ZFS but I think I found a bug.
I have eight 10GB drives.
When I installed SX:CE (snv_91) I chose "3" ("Solaris Interactive Text (Desktop
Session)) and the installer found all my drives but I told it to only use two -
giving me a 10GB mirrored rpool.
Immediately prior to the installation commenced I shelled and typed this to
enable compression:
# zfs set compression=on rpool
(Note: the editor removes multiple spaces and compresses this charts wrecking
the nice layout)
That trick gives me this (great for tiny drives):
# zfs get -r compression
NAME PROPERTY VALUE SOURCE
rpool compression on local
rpool/ROOT compression on inherited
from rpool
rpool/ROOT/snv_91 compression on inherited from
rpool
rpool/ROOT/snv_91/var compression on inherited from
rpool
rpool/dump compression off local
rpool/export compression on inherited
from rpool
rpool/export/home compression on inherited
from rpool
rpool/swap compression on inherited
from rpool
# zfs get -r compressratio
NAME PROPERTY VALUE SOURCE
rpool compressratio 1.56x -
rpool/ROOT compressratio 1.68x -
rpool/ROOT/snv_91 compressratio 1.68x -
rpool/ROOT/snv_91/var compressratio 2.05x -
rpool/dump compressratio 1.00x -
rpool/export compressratio 1.47x -
rpool/export/home compressratio 1.47x -
rpool/swap compressratio 1.00x -
I mention that so you don't wonder why my installation seems too small.
My "Bug Report" (or confusion about ZFS) is this:
I have 6 remaining 10 GB drives and I desire to "raid" 3 of them and "mirror"
them to the other 3 to give me raid security and integrity with mirrored drive
performance. I then want to move my "/export" directory to the new drive.
My SCSI drives are numbered c1t0d0 c1t1d0 c1t2d0 c1t3d0 c1t4d0 c1t5d0 c1t6d0
c1t8d0 (Drive c1t7d0 was reserved so the number is skipped).
I will type a few commands that I hope will provide some basic info (remember I
am new to this so don't hesitate to ask for more info nor should you flame me
for my foolishness :) ).
# format
Searching for disks...done
AVAILABLE DISK SELECTIONS:
0. c1t0d0 <DEFAULT cyl 1302 alt 2 hd 255 sec 63>
/[EMAIL PROTECTED],0/pci1000,[EMAIL PROTECTED]/[EMAIL PROTECTED],0
1. c1t1d0 <DEFAULT cyl 1302 alt 2 hd 255 sec 63>
/[EMAIL PROTECTED],0/pci1000,[EMAIL PROTECTED]/[EMAIL PROTECTED],0
2. c1t2d0 <VMware,-VMware Virtual S-1.0-10.00GB>
/[EMAIL PROTECTED],0/pci1000,[EMAIL PROTECTED]/[EMAIL PROTECTED],0
3. c1t3d0 <VMware,-VMware Virtual S-1.0-10.00GB>
/[EMAIL PROTECTED],0/pci1000,[EMAIL PROTECTED]/[EMAIL PROTECTED],0
4. c1t4d0 <VMware,-VMware Virtual S-1.0-10.00GB>
/[EMAIL PROTECTED],0/pci1000,[EMAIL PROTECTED]/[EMAIL PROTECTED],0
5. c1t5d0 <VMware,-VMware Virtual S-1.0-10.00GB>
/[EMAIL PROTECTED],0/pci1000,[EMAIL PROTECTED]/[EMAIL PROTECTED],0
6. c1t6d0 <VMware,-VMware Virtual S-1.0-10.00GB>
/[EMAIL PROTECTED],0/pci1000,[EMAIL PROTECTED]/[EMAIL PROTECTED],0
7. c1t8d0 <VMware,-VMware Virtual S-1.0-10.00GB>
/[EMAIL PROTECTED],0/pci1000,[EMAIL PROTECTED]/[EMAIL PROTECTED],0
Specify disk (enter its number): ^C
# zfs list
NAME USED AVAIL REFER MOUNTPOINT
rpool 4.36G 5.42G 35K /rpool
rpool/ROOT 3.09G 5.42G 18K legacy
rpool/ROOT/snv_91 3.09G 5.42G 3.01G /
rpool/ROOT/snv_91/var 84.7M 5.42G 84.7M /var
rpool/dump 640M 5.42G 640M -
rpool/export 13.9M 5.42G 19K /export
rpool/export/home 13.9M 5.42G 13.9M /export/home
rpool/swap 640M 6.05G 16K -
# zpool status
pool: rpool
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
rpool ONLINE 0 0 0
mirror ONLINE 0 0 0
c1t0d0s0 ONLINE 0 0 0
c1t1d0s0 ONLINE 0 0 0
errors: No known data errors
==========
The "Bug" is that the drive sizes don't seem to add up correctly when I
raid+mirror my drives.
The following display the sizes of three drives when mirrored or in raid
configuration:
# zpool create temparray raidz c1t2d0 c1t4d0 c1t5d0
# zfs list | grep temparray
temparray 97.2K 19.5G 1.33K /temparray
# zpool destroy temparray
# zpool create temparray mirror c1t2d0 c1t4d0 c1t5d0
# zfs list | grep temparray
temparray 89.5K 9.78G 1K /temparray
# zpool destroy temparray
So far so good. Now for what I wanted to do (raid + mirror (and move "/export"
to the new drive)):
Some web page suggested I could do this (wrong):
# zpool create temparray raidz c1t2d0 c1t4d0 c1t5d0
# zpool attach temparray mirror c1t2d0 c1t3d0
too many arguments
The man page says the correct syntax is this (still no cigar):
# zpool create temparray raidz c1t2d0 c1t4d0 c1t5d0
# zpool attach temparray c1t2d0 c1t3d0
cannot attach c1t3d0 to c1t2d0: can only attach to mirrors and top-level disks
So lets combine everything on one line (like that's gonna work, but it did,
sort of):
# zpool create temparray raidz c1t2d0 c1t4d0 c1t5d0 mirror c1t3d0 c1t6d0 c1t8d0
invalid vdev specification
use '-f' to override the following errors:
mismatched replication level: both raidz and mirror vdevs are present
# zpool create -f temparray raidz c1t2d0 c1t4d0 c1t5d0 mirror c1t3d0 c1t6d0
c1t8d0
# zpool status
pool: rpool
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
rpool ONLINE 0 0 0
mirror ONLINE 0 0 0
c1t0d0s0 ONLINE 0 0 0
c1t1d0s0 ONLINE 0 0 0
errors: No known data errors
pool: temparray
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
temparray ONLINE 0 0 0
raidz1 ONLINE 0 0 0
c1t2d0 ONLINE 0 0 0
c1t4d0 ONLINE 0 0 0
c1t5d0 ONLINE 0 0 0
mirror ONLINE 0 0 0
c1t3d0 ONLINE 0 0 0
c1t6d0 ONLINE 0 0 0
c1t8d0 ONLINE 0 0 0
errors: No known data errors
# zfs list
NAME USED AVAIL REFER MOUNTPOINT
rpool 4.36G 5.42G 35K /rpool
rpool/ROOT 3.09G 5.42G 18K legacy
rpool/ROOT/snv_91 3.09G 5.42G 3.01G /
rpool/ROOT/snv_91/var 84.5M 5.42G 84.5M /var
rpool/dump 640M 5.42G 640M -
rpool/export 12.9M 5.42G 19K /export
rpool/export/home 12.9M 5.42G 12.9M /export/home
rpool/swap 640M 6.05G 16K -
temparray 115K 29.3G 21.0K /temparray
The question (Bug?) is "Shouldn't I get this instead ?
# zfs list | grep temparray
temparray 97.2K 19.5G 1.33K /temparray
Why do I get 29.3G instead of 19.5G ?
Thanks for any help,
Rob
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