biggest disk partition on 5.8?

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Hey folks,

I have a Sun J4400 SAS1 disk array with 24 x 1T drives in it connected
to a Sunfire x2250 running 5.8 ( 64 bit )

I used 'arcconf' to create a big RAID60 out of (see below).

But then I mount it and it is way too small
This should be about 20TB :

[root@solexa1 StorMan]# df -h /dev/sdb1
Filesystem            Size  Used Avail Use% Mounted on
/dev/sdb1             186G   60M  176G   1% /mnt/J4400-1


Here is how I created it :

./arcconf create 1 logicaldrive name J4400-1-RAID60 max 60 0 0 0 1 0 2
0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0 15 0 16 0 17 0
18 0 19 0 20 0 21 0 22 0 23 noprompt

[root@solexa1 StorMan]# ./arcconf getconfig 1 ld
Controllers found: 1
----------------------------------------------------------------------
Logical device information
----------------------------------------------------------------------
Logical device number 0
  Logical device name                      : J4400-1-RAID60
  RAID level                               : 60 XOR
  Status of logical device                 : Impacted
  Size                                     : 19066880 MB
  Stripe-unit size                         : 256 KB
  Read-cache mode                          : Enabled
  Write-cache mode                         : Enabled (write-back)
  Write-cache setting                      : Enabled (write-back)
when protected by battery
  Partitioned                              : Yes
  Protected by Hot-Spare                   : No
  Bootable                                 : Yes
  Failed stripes                           : No
  --------------------------------------------------------
  Logical device segment information
  --------------------------------------------------------
  Group 0, Segment 0                       : Present (0,0) 9QJ3ZAYQ
  Group 0, Segment 1                       : Present (0,1) 9QJ3ZP3Y
  Group 0, Segment 2                       : Present (0,2) 9QJ3X7GR
  Group 0, Segment 3                       : Present (0,3) 9QJ3XJQW
  Group 0, Segment 4                       : Present (0,4) 9QJ3TPK2
  Group 0, Segment 5                       : Present (0,5) 9QJ40PHP
  Group 0, Segment 6                       : Present (0,6) GTE002PBHJEDBE
  Group 0, Segment 7                       : Present (0,7) 9QJ3ZHE0
  Group 0, Segment 8                       : Present (0,8) 9QJ3Z053
  Group 0, Segment 9                       : Present (0,9) 9QJ3ZEX6
  Group 0, Segment 10                      : Present (0,10) 9QJ33XGG
  Group 0, Segment 11                      : Present (0,11) 9QJ3X88X
  Group 1, Segment 0                       : Present (0,12) 9QJ3YLR2
  Group 1, Segment 1                       : Present (0,13) GTE002PBHHNVZE
  Group 1, Segment 2                       : Present (0,14) 9QJ3ZGM2
  Group 1, Segment 3                       : Present (0,15) GTE002PBGP9VZE
  Group 1, Segment 4                       : Present (0,16) 9QJ3ZB4X
  Group 1, Segment 5                       : Present (0,17) 9QJ3ZAE0
  Group 1, Segment 6                       : Present (0,18) 9QJ3Y8C8
  Group 1, Segment 7                       : Present (0,19) GTE002PBH30GKE
  Group 1, Segment 8                       : Present (0,20) GTE002PAKXKDPE
  Group 1, Segment 9                       : Present (0,21) 9QJ3VXEL
  Group 1, Segment 10                      : Present (0,22) 9QJ3W4W6
  Group 1, Segment 11                      : Present (0,23) 9QJ3TPGR


Make 1 big partition :

sfdisk /dev/sdb <<EOF
,,L
EOF

[root@solexa1 StorMan]# sfdisk -l /dev/sdb

Disk /dev/sdb: 2430685 cylinders, 255 heads, 63 sectors/track
Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0

  Device Boot Start     End   #cyls    #blocks   Id  System
/dev/sdb1          0+  24540-  24541- 197124430   83  Linux
/dev/sdb2          0       -       0          0    0  Empty
/dev/sdb3          0       -       0          0    0  Empty
/dev/sdb4          0       -       0          0    0  Empty

And then make an ext4 filesystem on that :

[root@solexa1 StorMan]# mke4fs /dev/sdb1
mke4fs 1.41.12 (17-May-2010)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
12320768 inodes, 49281107 blocks
2464055 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
1504 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
       32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
       4096000, 7962624, 11239424, 20480000, 23887872

Writing inode tables: done
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 30 mounts or
180 days, whichever comes first.  Use tune4fs -c or -i to override.

-- 
“Don't eat anything you've ever seen advertised on TV”
         - Michael Pollan, author of "In Defense of Food"
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