Dear Cesar,
I connected 16 LUN of 1.5TB and created one LVM.
And, the GFS filesystem was able to be created correctly.
Perhaps, you will be able also to create the GFS filesystem of 30TB.
However, the df command is very slow :<.
# uname -r
2.6.9-34.ELsmp
--- Logical volume ---
LV Name /dev/vg00/gfslv00
VG Name vg00
LV UUID bNmNaQ-NcRp-Kmp2-AwVx-LEFC-8HlJ-BIeSRZ
LV Write Access read/write
LV Status available
# open 1
LV Size 23.00 TB
Current LE 6029312
Segments 16
Allocation inherit
Read ahead sectors 0
Block device 253:2
# cat /proc/partitions
major minor #blocks name
8 48 1562488832 sdd
8 64 1562488832 sde
8 80 1562488832 sdf
8 96 1562488832 sdg
8 112 1562488832 sdh
8 128 1562488832 sdi
8 144 1562488832 sdj
8 160 1562488832 sdk
8 176 1562488832 sdl
8 192 1562488832 sdm
8 208 1562488832 sdn
8 224 1562488832 sdo
8 240 1562488832 sdp
65 0 1562488832 sdq
65 16 1562488832 sdr
65 32 1562488832 sds
65 48 16777216 sdt
253 2 24696061952 dm-2
Regards
------------------------------------------------------
Shirai Noriyuki
Chief Engineer Technical Div. System Create Inc
Kanda Toyo Bldg, 3-4-2 Kandakajicho
Chiyodaku Tokyo 101-0045 Japan
Tel81-3-5296-3775 Fax81-3-5296-3777
e-mail:shirai@xxxxxxxxxx web:http://www.sc-i.co.jp
------------------------------------------------------
Hi,
We have plans to build a 30TB aprox. data storage using a set of SAN boxes
configured as
RAID 5, our understanding is that using LVM2 with Red Hat 4 and our 64 bit
AMD opteron
processors shall allow us to do that. Our concern is to know in advance if
our approach is
wrong or even better if somebody else has been successfully taking the
same road.
Documentation tells us that the limit is in the order of the 8 Exabytes
(8TB for IA-32)
but this not enough as this is a go / no go decision.
Thanks for any help or pointer to a similar rig.
Cesar O. Pablo
PS: By the way, we already discovered that the max. physical partition
cannot exceed 2TB
with our Hardware.
Cesar
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