Newfs on large filesystem

Question

I'm trying to build a filesystem on a 420GB disk. (Actually it's a hardware RAID 5 device consisting of 4 x 146G disks in a Storedge 3510).
When I run newfs to create the fs I get this...
# newfs -N -f 4096 /dev/dsk/c4t40d3s0
Warning: cylinder groups must have a multiple of 16 cylinders with the given
         parameters
Rounded cgsize up to 256
Warning: insufficient space in super block for
rotational layout tables with nsect 127, ntrack 127, and nrpos 8.
Omitting tables - file system performance may be impaired.
Warning: inode blocks/cyl group (1267) >= data blocks (1008) in last
    cylinder group. This implies 16128 sector(s) cannot be allocated.
/dev/rdsk/c4t40d3s0:    858578928 sectors in 53232 cylinders of 127 tracks, 127 sectors
        419228.0MB in 3327 cyl groups (16 c/g, 126.01MB/g, 15808 i/g)
super-block backups (for fsck -F ufs -o b=#) at:
32, 258224, 516416, 774608, 1032800, 1290992, 1549184, 1807376, 2065568,
2323760,
Initializing cylinder groups:
super-block backups for last 10 cylinder groups at:
856013296, 856271488, 856529680, 856787872, 857046064, 857304256, 857562448,
857820640, 858078832, 858337024,So the creation of the fs worked but it's saying that the filesystem performance may be impaired and that 16128 sectors can't be allocated.
Any ideas what I could do to eliminate these warnings?
John.

Answer 1

I'm trying to build a filesystem on a 420GB disk.
(Actually it's a hardware RAID 5 device consisting
g of 4 x 146G disks in a Storedge 3510).
When I run newfs to create the fs I get this...
# newfs -N -f 4096 /dev/dsk/c4t40d3s0
Warning: cylinder groups must have a multiple of 16
cylinders with the given
parameters
Rounded cgsize up to 256
Warning: insufficient space in super block for
rotational layout tables with nsect 127, ntrack 127,
and nrpos 8.
Omitting tables - file system performance may be
impaired.
Warning: inode blocks/cyl group (1267) >= data blocks
(1008) in last
cylinder group. This implies 16128 sector(s)
r(s) cannot be allocated....
So the creation of the fs worked but it's saying that
the filesystem performance may be impaired and that
16128 sectors can't be allocated.
Any ideas what I could do to eliminate these
warnings?
John.According to the Sun 3510 configuration manual, any logical disk
over 253GB needs to have explicit C/H/S values set due to the OS limit of 65535 cylinders.
If you set the options as described in the manual and reboot, you should be able to newfs the disk as desired.
See the relevant manual section at:
http://www.sun.com/products-n-solutions/hardware/docs/html/817-3711-10/ch08_configparam.html#_Toc521744099