8 Luns instead of 2
Hi,
I have a qlogic fibre channel card installed in a CentOS 5.3 server. Dmesg o/p: -------------------------------------------------- QLogic Fibre Channel HBA Driver QLogic Fibre Channel HBA Driver: 8.02.00.06.05.03-k QLogic QLA2340 - 133MHz PCI-X to 2Gb FC, Single Channel -------------------------------------------------------------------- It looks like the card is working properly. But the problem is , 2 Luns of 38 GBs are allocated. But in my CentOS box I can see 8 devices in /dev ie. sdc, sdd, sde, sdf, sdg, sdh, sdi, sdj. fdisk -l reports: -- Disk /dev/sdc doesn't contain a valid partition table Disk /dev/sdd: 35.9 GB, 35939942400 bytes 64 heads, 32 sectors/track, 34275 cylinders Units = cylinders of 2048 * 512 = 1048576 bytes Disk /dev/sdd doesn't contain a valid partition table Disk /dev/sde: 35.9 GB, 35939942400 bytes 64 heads, 32 sectors/track, 34275 cylinders Units = cylinders of 2048 * 512 = 1048576 bytes Disk /dev/sde doesn't contain a valid partition table Disk /dev/sdc doesn't contain a valid partition table Disk /dev/sdd: 35.9 GB, 35939942400 bytes 64 heads, 32 sectors/track, 34275 cylinders Units = cylinders of 2048 * 512 = 1048576 bytes Disk /dev/sdd doesn't contain a valid partition table Disk /dev/sde: 35.9 GB, 35939942400 bytes 64 heads, 32 sectors/track, 34275 cylinders Units = cylinders of 2048 * 512 = 1048576 bytes Disk /dev/sde doesn't contain a valid partition table Disk /dev/sdf: 35.9 GB, 35939942400 bytes 64 heads, 32 sectors/track, 34275 cylinders Units = cylinders of 2048 * 512 = 1048576 bytes Disk /dev/sdf: 35.9 GB, 35939942400 bytes 64 heads, 32 sectors/track, 34275 cylinders Units = cylinders of 2048 * 512 = 1048576 bytes .. and so on.. What might be the problem. Thanks in Adv Paras. |
Have you got multiple fibre paths to the same disks? If so, you probably need a multi-path deamon.
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I compiled the qlogic drivers from the src file found at qlogic.com and it seems to be fine now (still testing).
BTW, how do I know if multi-path daemon is running or not. Thanks for your answer Paras. |
I have no experience w/ fiber channel, so this may be completely wrong; also you seem to say that after compiling & installing the mfrs. drivers, the problem is solved; but, your fdisk -l output reminds me of my LVM set up -- do/did you by chance have LVM running?
What does you fdisk -l look like now? [Hint, put the o/p inside [code] [/code] tags.] |
fdisk -l takes my SAN connected LUNS as normal partitions.
here the o/p root@cvtst1 ~]# fdisk -l Disk /dev/sda: 73.4 GB, 73407820800 bytes 255 heads, 63 sectors/track, 8924 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 65 522081 83 Linux /dev/sda2 66 8924 71159917+ 8e Linux LVM Disk /dev/sdc: 35.9 GB, 35939942400 bytes 64 heads, 32 sectors/track, 34275 cylinders Units = cylinders of 2048 * 512 = 1048576 bytes Device Boot Start End Blocks Id System /dev/sdc1 1 34275 35097584 8e Linux LVM Disk /dev/sdd: 35.9 GB, 35939942400 bytes 64 heads, 32 sectors/track, 34275 cylinders Units = cylinders of 2048 * 512 = 1048576 bytes Device Boot Start End Blocks Id System /dev/sdd1 1 11 11248 83 Linux [root@cvtst1 ~]# ---- Here sdc1 is my SAN connected storage. Paras. |
I'm ready to give up on this thread: I didn't ask for a post of more fdisk output, I asked that fdisk output be put in [CODE][/CODE] blocks. If you don't understand [CODE][/CODE] blocks, ask for help w/ them.
When I asked, "do/did you by chance have LVM running?", a simple yes would have sufficed, I didn't need to wade through more improperly formatted CLI output. |
I did what i think I am supposed to write/reply.
So Bye bye archtoad6 |
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