Re: How to find out drive path - Help

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On Mon, 2009-10-05 at 16:58 +0100, Dan Track wrote:
> Hi,
> 
> I've just added a new hp array to my server and when looking in dmesg
> I can see the following:
> 
> scsi0 : ioc0: LSISAS1068E B3, FwRev=01192100h, Ports=1, MaxQ=343, IRQ=185
>   Vendor: HP        Model: MSA2012sa         Rev: J300
>   Type:   Enclosure                          ANSI SCSI revision: 05
> ACPI: PCI Interrupt 0000:17:00.0[A] -> GSI 19 (level, low) -> IRQ 98
> mptbase: ioc1: Initiating bringup
> ioc1: LSISAS1068E B3: Capabilities={Initiator}
> PCI: Setting latency timer of device 0000:17:00.0 to 64
> scsi1 : ioc1: LSISAS1068E B3, FwRev=01192100h, Ports=1, MaxQ=343, IRQ=98
>   Vendor: HP        Model: MSA2012sa         Rev: J300
>   Type:   Enclosure                          ANSI SCSI revision: 05
> HP CISS Driver (v 3.6.20-RH2)
> ACPI: PCI Interrupt 0000:06:00.0[A] -> GSI 18 (level, low) -> IRQ 185
> cciss0: <0x3230> at PCI 0000:06:00.0 IRQ 130 using DAC
>       blocks= 143305920 block_size= 512
>       heads= 255, sectors= 32, cylinders= 17562
> 
>       blocks= 143305920 block_size= 512
>       heads= 255, sectors= 32, cylinders= 17562
> 
>  cciss/c0d0: p1 p2
> libata version 3.00 loaded.
> Initializing USB Mass Storage driver...
> 
> 
> mount
> /dev/mapper/VolGroup00-LogVolRoot on / type ext3 (rw)
> proc on /proc type proc (rw)
> sysfs on /sys type sysfs (rw)
> devpts on /dev/pts type devpts (rw,gid=5,mode=620)
> /dev/mapper/VolGroup00-LogVolVar on /var type ext3 (rw)
> /dev/mapper/VolGroup00-LogVolTmp on /tmp type ext3 (rw)
> /dev/mapper/VolGroup00-LogVolUsr on /usr type ext3 (rw)
> /dev/cciss/c0d0p1 on /boot type ext3 (rw)
> tmpfs on /dev/shm type tmpfs (rw)
> none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
> sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
> 
> 
> My question is how can I tell where the partition on the array is
> mapped to on my server?
> 
> Thanks in advance.
> Dan
> 

Check out the lvm command, more specifically (as root or with sudo):

lvm vgs
lvm lvs
lvm pvs

Using my laptop as an example (username and hostname scrubbed):

[12:07 PM] user @ laptop [~] $  sudo lvm vgs
  VG           #PV #LV #SN Attr   VSize   VFree
  vg_laptop   1   3   0 wz--n- 297.89G    0 

This one shows your volume groups.


[12:08 PM] user @ laptop [~] $  sudo lvm lvs
  LV      VG   Attr   LSize   Origin Snap%  Move Log Copy%  Convert
  lv_root vg_laptop -wi-ao  60.51G                                      
  lv_swap vg_laptop -wi-ao   5.67G                                      
  lv_vm   vg_laptop -wi-ao 231.71G   

This one shows the logical volumes and which volume group it is
associated with. 
                                   
[12:08 PM] user @ laptop [~] $  sudo lvm pvs
  PV         VG           Fmt  Attr PSize   PFree
  /dev/sda2  vg_laptop lvm2 a-   297.89G    0 

And finally, this one shows where the volume group is on the disk and
what size/format it is.

Tait


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