From: Steven Sim (steven.sim@faplccc.net)
Date: Wed Dec 14 2005 - 11:06:28 EST
Hello Gurus;
The machine in question is a 240 with 2 internal 72 Gbyte hard disk.
# uname -a
SunOS 5.9 Generic_112233-12 sun4u sparc SUNW,Sun-Fire-V240
AVAILABLE DISK SELECTIONS:
0. c1t0d0 <SUN72G cyl 14087 alt 2 hd 24 sec 424>
/pci@1c,600000/scsi@2/sd@0,0
1. c1t1d0 <SUN72G cyl 14087 alt 2 hd 24 sec 424>
/pci@1c,600000/scsi@2/sd@1,0
Specify disk (enter its number):
I booted from OK prompt
OK>boot cdrom -s
and once in single user mode, I did the following;
# prtvtoc /dev/rdsk/c1t0d0s2 | fmthard -s - /dev/rdsk/c1t1d0s2
fmthard: New volume table of contents now in place.
So now c1t1d0 has the same VTOC as c1t0d0
Then I did a newfs and here's where the msg in question appeared;
# newfs /dev/rdsk/c1t1d0s2
newfs: construct a new file system /dev/rdsk/c1t1d0s0: (y/n)? y
Warning: inode blocks/cyl group (719) >= data blocks (636) in last
cylinder group. This implies 10176 sector(s) cannot be allocated.
/dev/rdsk/c1t1d0s0: 139105920 sectors in 13670 cylinders of 24
tracks, 424 sectors
67922.8MB in 1367 cyl groups (10 c/g, 49.69MB/g, 6016 i/g)
super-block backups (for fsck -F ufs -o b=#) at:
32, 102224, 204416, 306608, 408800, 510992, 613184, 715376, 817568, 919760,
Initializing cylinder groups:
...........................
super-block backups for last 10 cylinder groups at:
138093968, 138196160, 138298352, 138400544, 138502736, 138604928,
138707120,
138809312, 138911504, 139013696,
The newfs gave the warning as shown above;
Warning: inode blocks/cyl group (719) >= data blocks (636) in last
cylinder group. This implies 10176 sector(s) cannot be allocated
The partition table of the disk in question is shown below;
Part Tag Flag Cylinders Size Blocks^M
0 root wm 413 - 14083 66.34GB (13671/0/0)
139116096^M
1 swap wu 0 - 412 2.00GB (413/0/0)
4202688^M
2 backup wm 0 - 14086 68.35GB (14087/0/0)
143349312^M
3 unassigned wu 0 0
(0/0/0) 0^M
4 unassigned wu 0 0
(0/0/0) 0^M
5 unassigned wu 0 0
(0/0/0) 0^M
6 unassigned wu 0 0
(0/0/0) 0^M
7 unassigned wu 0 0
(0/0/0) 0^M
Question;
Why did newfs not create another cylinder group if the number of blocks
in the last cylinder group (719) was greater than the default blocks per
cylinder group (636)?
Should I have instead used an additional -o option in newfs or used
mkfs_ufs directly? Perhaps increase cgsize?
Any chance I can recover the 10176 unallocated sectors?
Warmest Regards
Steven Sim
Fujitsu Asia Pte. Ltd.
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