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2008 Mar 29
2
Big devices and missing space
...t RAID controller in my box, connected to 8
750GB disks. I have set up 2 RAID-5 devices and joined these using LVM.
This is working fine.
However, there is something that seems wrong..
(4-1) * 750 = 2250, but df reports the LVM volume as a mere 4.0T;
/dev/mapper/storage_volume-stor 4.0T 3.6T 507G 88% /storage
Shouldn't this be 4.5TB?
Relevant bit of boot log:
scsi4 : stex
Vendor: Promise Model: 4 Disk RAID5 Rev: 1.10
Type: Direct-Access ANSI SCSI revision: 02
sdb : very big device. try to use READ CAPACITY(16).
SCSI device sdb: 4395053952 512-byt...