Ok, honestly, it’s my first post here, and there are so many moving parts that I’m not entirely sure this is the best first forum to post in, but here goes:
I just built a server using an Nvidia hardware RAID chipset on an HP machine putting a terabyte available with three disks for LVM to divvy up and offer on the network as shares using Samba.
It’s all working just fine except that the kraid45d device just seems to hang forever sometimes (well over ten seconds, and pretty regularly).
One can browse the disk w/o error via the network (that’s all we’re really talking here is browsing since it’s just set up) until the daemon hangs, and then the client hangs until Samba’s gotten the info from the rest of the system.
They really need this machine to be offering disks asap, and the working plan is to ‘un-RAID’ it and do something else if the RAID drivers can’t actually drive (or drive poorly). If you ask it, it’s not reporting errors.
dmraid -r
/dev/sdd: nvidia, “nvidia_gdifbbfg”, raid5_ls, ok, 976773166 sectors, data@ 0
/dev/sdc: nvidia, “nvidia_gdifbbfg”, raid5_ls, ok, 976773166 sectors, data@ 0
/dev/sdb: nvidia, “nvidia_gdifbbfg”, raid5_ls, ok, 976773166 sectors, data@ 0
lvdisplay
— Logical volume —
LV Name /dev/raid_array/vol_one
VG Name raid_array
LV UUID IGlDbM-CGSR-PbkN-0GTe-arbo-UzvN-9JvnUz
LV Write Access read/write
LV Status available
open 1
LV Size 100.00 MB
Current LE 25
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:1
— Logical volume —
LV Name /dev/raid_array/Primary_share
VG Name raid_array
LV UUID UrO3rE-foRE-X16m-B3Q2-Yql1-Q8S4-SYChj8
LV Write Access read/write
LV Status available
open 1
LV Size 300.00 GB
Current LE 76800
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:2
— Logical volume —
LV Name /dev/raid_array/scans
VG Name raid_array
LV UUID Gy0RLP-WJel-rf9t-jt26-WgYO-P1FM-0nfxFX
LV Write Access read/write
LV Status available
open 1
LV Size 100.00 GB
Current LE 25600
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:3