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2010 Jul 14
1
GPT Partitions >2.2T with Centos 5.5
...ur Centos 5.5 Servers. I suspect issues with the GUID
Partition Table, since it happens reproducibly only on the LUNs >2.2T and
goes back to normal performance when using a LUN <2T with "normal", Legacy
MBR partitions.
All machines are CentOS 5.5 (and RHEL 5.5) on IBM Blades LS21/LS41, all
LUNs via Brocade 4G FC Switches from a SUN 7310 Unified Storage, EXT3
filesystems with standard settings.
Any hints?
regards
Jens
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2010 May 27
2
Multipathing with Sun 7310
Dear list,
we have a relatively new Sun Storage 7310, where we connect CentOS 5.5
Servers (IBM LS21/LS41 Blades) via Brocade Switches, 4GBit FC. The Blades
boot from SAN via qla2xxx, and have no harddisks at all. We want them to
use multipathing from the very beginning, so /boot and / are already seen
by multipathd. Problem is, that the Sun 7310 has two storage heads which
run in active/passive mo...