Hi List,
I am taking advantage of the holiday season by testing some NAS devices
for work. This now allows me to rebuild my home storage.
My current setup is as follow:
/dev/sda 250 gig drive (/boot is mounted here since I had no other use
for the drive)
/dev/sdb 2TB drive
/dev/sdc 2TB drive
/dev/sdb and sdc has two MD devices on them, a RAID1 and a RAID0 device.
/dev/sdb and sdc was taken out of a MAC server, so the partition table
is a mess, I want to rebuild them.
All of these house LVM PV's
The RAID1 device contains all my "critical" data ( root device, logs,
photos etc) while the RAID0 device contains all data I have other
sources for.
So my question is, do I need to align the partitions for the raid devices ?
These are desktop grade drives, but for the RAID0 device I saw quite low
throughput (15meg/sec moving data to the NAS via gig connection). I just
created a RAID1 device between /dev/sda and an iSCSI target on the NAS,
and it synced at 48meg/sec, moving data at 30meg/sec - double that of
the RAID0 device. I would have expected the RAID0 device to easily get
up to the 60meg/sec mark ?
Cheers,
Pieter
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