lsscsi can show both physical SAS drives and
flash devices. There are 12 SAS devices
and
lsscsi -v | grep MARVEL
[8:0:0:0]
disk ATA MARVELL SD88SA02 D20Y /dev/sdn
[8:0:1:0]
disk ATA MARVELL SD88SA02 D20Y /dev/sdo
….
[11:0:3:0]
disk ATA MARVELL SD88SA02 D20Y /dev/sdac
lsscsi -v | grep LSI show 12 physical devices
/opt/MegaRAID/MegaCli/MegaCli64 -ShowSummary –aALL (you should see 12 disks)
Connector : Port 0 -
3<Internal><Encl Pos 0 >: Slot 0
Vendor Id : HITACHI
Product Id : HQWERASDFA.0T
State : Online
Disk Type : SAS,Hard Disk
Device
Capacity : 2.727 TB
Power State : Active
Each Exadata Storage Server has 12 physical SAS disks and
4 96GB PCIe Sun Flash Accelerator flash cards.
Each card partition into 4 x 24 GB partitions.
On Compute Node, there are 4 x 300 GB SAS – 1 hot spare (slot
3) and 3 active (slot 0,1,2)
/opt/MegaRAID/MegaCli/MegaCli64 -ShowSummary –aALL
[root@r22dwdbs06h-adm MegaCli]# pvdisplay
--- Physical
volume ---
PV Name /dev/sda2
VG Name VGExaDb
PV Size 834.89 GB / not usable 3.84 MB
Allocatable yes
PE Size
(KByte) 4096
Total PE 213731
Free PE 153827
Allocated PE 59904
PV UUID
TMKLyW-2e2u-2BFq-xf4l-jdne-Vnb7-LOmcHd
[root@r22dwdbs06h-adm MegaCli]# lvdisplay
--- Logical
volume ---
LV Name /dev/VGExaDb/LVDbSys1
VG Name VGExaDb
--- Logical
volume ---
LV Name /dev/VGExaDb/LVDbSys2
VG Name VGExaDb
--- Logical
volume ---
LV Name /dev/VGExaDb/LVDbSwap1
VG Name VGExaDb
--- Logical
volume ---
LV Name /dev/VGExaDb/LVDbOra1
VG Name VGExaDb
--- Logical
volume ---
LV Name /dev/VGExaDb/sysback
VG Name VGExaDb
LV UUID kAKBpc-2I2n-xeJh-8sZy-OPxD-hklZ-ykaBsv
lvdisplay -v
/dev/VGExaDb/LVDbSys1 (shows attributes of that logical volume)
ls -ltr /dev/VGExaDb/LVDb* (show
the map to /dev/mapper devices)
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