Disk Array > 2TB

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I’ve got a system with a 3ware 9000 RAID card with 12 250GB SATA drives.

And another one with two 3ware 9000 RAID cards each with 8 250GB SATA drives.

 

Both are running kernel 2.6.8-1 (521) 686smp (Systems are dual Xeon 2Ghz HT).

 

I’ve got no problem with the 2nd system. Both arrays are 1.75 TB and running fine. However I’d like to join both disks on a single volume.

 

The 1st system I cannot get the system to recognize the full 2.5 TB.

 

This is my syslog:

 

Sep 28 14:13:02 heracles kernel: 3ware 9000 Storage Controller device driver for Linux v2.26.02.001.

Sep 28 14:13:02 heracles kernel: ACPI: PCI interrupt 0000:03:01.0[A] -> GSI 18 (level, low) -> IRQ 201

Sep 28 14:13:04 heracles kernel: scsi2 : 3ware 9000 Storage Controller

Sep 28 14:13:04 heracles kernel: 3w-9xxx: scsi2: Found a 3ware 9000 Storage Controller at 0xf3841000, IRQ: 201.

Sep 28 14:13:04 heracles kernel: 3w-9xxx: scsi2: Firmware FE9X 2.02.00.012, BIOS BE9X 2.02.01.037, Ports: 12.

Sep 28 14:13:04 heracles kernel:   Vendor: 3ware     Model: Logical Disk 00   Rev: 1.00

Sep 28 14:13:04 heracles kernel:   Type:   Direct-Access                      ANSI SCSI revision: 00

Sep 28 14:13:04 heracles kernel: sdb : very big device. try to use READ CAPACITY(16).

Sep 28 14:13:04 heracles kernel: SCSI device sdb: 5370855424 512-byte hdwr sectors (2749878 MB)

Sep 28 14:13:04 heracles kernel: SCSI device sdb: drive cache: write back, no read (daft)

Sep 28 14:13:04 heracles kernel:  sdb: sdb1

Sep 28 14:13:04 heracles kernel: Attached scsi disk sdb at scsi2, channel 0, id 0, lun 0

Sep 28 14:13:04 heracles kernel: Attached scsi generic sg1 at scsi2, channel 0, id 0, lun 0,  type 0

Sep 28 14:13:04 heracles scsi.agent[2021]: disk at /devices/pci0000:00/0000:00:02.0/0000:02:1f.0/0000:03:01.0/host2/2:0:0:0

Sep 28 14:13:32 heracles kernel: XFS mounting filesystem sdb1

 

However df (and everything else) reports:

 

Filesystem           1K-blocks      Used Available Use% Mounted on

/dev/sda3             17580928    680736  16900192   4% /

/dev/sda1               256666      8460    234954   4% /boot

none                    517192         0    517192   0% /dev/shm

/dev/sdb1            537810560       528 537810032   1% /root/home

 

Filesystem            Size  Used Avail Use% Mounted on

/dev/sda3              17G  665M   17G   4% /

/dev/sda1             251M  8.3M  230M   4% /boot

none                  506M     0  506M   0% /dev/shm

/dev/sdb1             513G  528K  513G   1% /root/home

 

What is going wrong?

How can I manage to join both 1.75TB on a single volume? (volume manager doesn’t support above 2TB does it?)

 

Thanks in advance.

Omar Castañeda Acosta

Sysadmin

iDEA


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