UFS filesystem limit on solaris 10 - sparc

Question

Hi All,
I have one question in regards with soalris UFS file system on Sun Solaris 10 Sparc.
currently i have one mount point with 1.5 TB of space with UFS filesystem connected to EMC SAN, now i am going to add one metalun of 1 more TB and exapnd it on SAN.
In regards with this i have some concerns:
1) Will UFS support 2.5 TB on a single slice?
2) Simply growfs command will work or do we need to perform additional steps?
Steps :
--> bkp data and umount the filesystem
--> run devfsadm
--> use growfs command
--> mount partition again
Any suggestions in this regards are really appreciated.
Thanks in advance.

Answer 1

user12143664 wrote:
Hi,
Many thanks for input.
May i know how can i start scsci auto detect in format?
Lun detected with new capacity but not displaying in partition table even after labeling the disk.
11. emcpower1a <DGC-RAID 5-0429-2.44TB>
/pseudo/emcp@1Current situation:
Part      Tag    Flag     First Sector          Size          Last Sector
0        usr    wm                34         1.46TB           3145711582
1 unassigned    wm                 0            0                0
2 unassigned    wm                 0            0                0
3 unassigned    wm                 0            0                0
4 unassigned    wm                 0            0                0
5 unassigned    wm                 0            0                0
6 unassigned    wm                 0            0                0
8   reserved    wm        3145711583         8.00MB           3145727966I tried zero VTOC its not working as slice 2 wa already zero.
Need help.
Thanks in advance.FWIW, that's an EFI label. Above a certain size, "standard" Solaris disk labels don't work, so EFI labels are required. Is that the same as the VTOC that was available before you enlarged the LUN. IIRC that limit might be 2 TB.
Since you refer to slice 2, I am assuming here the old label may not have been an EFI label. Also, EFI labels do not support overlapping slices, so the old Solaris convention of slice 2 being the entire disk no longer applies.