From: John Fiori (fiori@crrel.usace.army.mil)
Date: Wed Apr 10 2002 - 11:37:44 EDT
Running Solaris8 10/01
I have a large array that I have broken down into smaller slices which are
100 Gbytes or larger. When I run the command "newfs /dev/rdsk/c2t2d1s0" I
recieve the response
newfs: construct a new file system /dev/rdsk/c2t2d1s0: (y/n)? y
Minimum bytes per inode is 11992
With 32385 sectors per cylinder, minimum cylinders per group is 16
This requires the fragment size to be changed from 1024 to 8192
Please re-run mkfs with corrected parameters
So I run the command with these parameters but recieve the following warning
newfs -Nv -i 11992 -f 8192 /dev/rdsk/c2t2d1s0
mkfs -F ufs -o N /dev/rdsk/c2t2d1s0 209725260 127 255 8192 8192 251 1 90
11992 t 0 -1 8 127
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 255, and nrpos 8.
Omitting tables - file system performance may be impaired.
Warning: 12 sector(s) in last cylinder unallocated
/dev/rdsk/c2t2d1s0: 209725248 sectors in 6476 cylinders of 255 tracks,
127 sectors
102404.9MB in 405 cyl groups (16 c/g, 253.01MB/g, 21888 i/g)
super-block backups (for fsck -F ufs -o b=#) at:
32, 518320, 1036608, 1554896, 2073184, 2591472, 3109760, 3628048, 4146336,
Can someone help me figure out a way to get around these warnings. I can
resize some of the partitions to be a multiple of 16 cylinders but not all
partitions. Is there some formula so I can pass the correct parameters to
newfs?? This seems to be a problem on high density disks and were moving in
that direction.
Thank you John Fiori
*****************************************
John E. Fiori
ERDC/CRREL
72 Lyme Rd.
Hanover, NH 03755
Phone: 603 646-4515
FAX: 603 646-4397
Email: fiori@crrel.usace.army.mil
*****************************************
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