After the fun and games with my other LSI MegaRAID card, I'm a glutton
for punishment.
I'm building another system, which this time, has an LSI MegaRAID SATA
300-8X controller in it. This appears to be working perfectly, and a
lot faster than my other card, with the exception of this warning
message during boot:
sda: p1 size 2930304132 limited to end of disk
Is this something I should be worried about, and how does it come
about. I built a new RAID 5, Logical device, on the card, which the LSI
utility says is 1430511MB in size.
Here's the relevant output from DMESG:
scsi 4:1:0:0: Direct-Access MegaRAID LD 0 RAID5 1430G 815C PQ: 0 ANSI: 2
sd 4:1:0:0: [sda] 2929686528 512-byte hardware sectors: (1.49 TB/1.36 TiB)
sd 4:1:0:0: [sda] Write Protect is off
sd 4:1:0:0: [sda] Mode Sense: 00 00 00 00
sd 4:1:0:0: [sda] Asking for cache data failed
sd 4:1:0:0: [sda] Assuming drive cache: write through
sd 4:1:0:0: [sda] 2929686528 512-byte hardware sectors: (1.49 TB/1.36 TiB)
sd 4:1:0:0: [sda] Write Protect is off
sd 4:1:0:0: [sda] Mode Sense: 00 00 00 00
sd 4:1:0:0: [sda] Asking for cache data failed
sd 4:1:0:0: [sda] Assuming drive cache: write through
sda: sda1
sda: p1 size 2930304132 limited to end of disk
sd 4:1:0:0: [sda] Attached SCSI disk
sd 4:1:0:0: Attached scsi generic sg1 type 0
And /proc/partions:
major minor #blocks name
3 0 20044080 hda
3 1 9727326 hda1
3 2 9727357 hda2
3 4 586372 hda4
8 0 1464843264 sda
8 1 1464843232 sda1
253 0 314572800 dm-0
253 1 157286400 dm-1
253 2 209715200 dm-2
253 3 104857600 dm-3
253 4 104857600 dm-4
253 5 262144000 dm-5
And fdisk:
Disk /dev/sda: 1499.9 GB, 1499999502336 bytes
255 heads, 63 sectors/track, 182364 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0003d809
Device Boot Start End Blocks Id System
/dev/sda1 1 182403 1465152066 8e Linux LVM
So, where is the discrepancy creeping in.
Also, I see this in DMESG:
sd 4:1:0:0: [sda] Assuming drive cache: write through
But, as this card has a battery backup, I have it set to "Write Back" in
the configuration. So, what mode is it really operating in.
Cheers,
Eddie
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