Alex Samad <alex <at> samad.com.au> writes: > > Lately I tried some different configurations (lvm & partition) to divide > > my raid > > 5 array. > you might want to check out http://www.miracleas.com/BAARF/BAARF2.html talks > about why you might not want to use raid5 in this config and maybe raid1/0
Thank you for the information. I read few articles but I'm not a company, and raid1/0 is too expensive for me. Anyway, it does not explain why there is so much performance differences between lvm and partitioned array. Here is some additional information : # pvdisplay --- Physical volume --- PV Name /dev/md0 VG Name raidvol1 PV Size 1,34 TB / not usable 0 Allocatable yes (but full) PE Size (KByte) 65536 Total PE 21908 Free PE 0 Allocated PE 21908 # vgdisplay --- Volume group --- VG Name raidvol1 System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 11 VG Access read/write VG Status resizable MAX LV 0 Cur LV 3 Open LV 3 Max PV 0 Cur PV 1 Act PV 1 VG Size 1,34 TB PE Size 64,00 MB Total PE 21908 Alloc PE / Size 21908 / 1,34 TB Free PE / Size 0 / 0 # lvdisplay --- Logical volume --- LV Name /dev/raidvol1/data1 VG Name raidvol1 LV Write Access read/write LV Status available # open 1 LV Size 849,25 GB Current LE 13588 Segments 1 Allocation inherit Read ahead sectors 0 Block device 253:0 --- Logical volume --- LV Name /dev/raidvol1/data2 VG Name raidvol1 LV Write Access read/write LV Status available # open 1 LV Size 500,00 GB Current LE 8000 Segments 1 Allocation inherit Read ahead sectors 0 Block device 253:1 --- Logical volume --- LV Name /dev/raidvol1/home1 VG Name raidvol1 LV Write Access read/write LV Status available # open 1 LV Size 20,00 GB Current LE 320 Segments 1 Allocation inherit Read ahead sectors 0 Block device 253:2 -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
