Assuming we have a server with 8 hdd, using raid5. After applying raid5 to the disk, solaris 11 will be install.
In my understanding, 8 hdd will represent 1disk(pls correct me if I'm wrong) and have one pool(rpool).
Using raid5 for 8hdd, could it be possible to have multiple pool? My objectives are:
1. Install OS in rpool
2. Install oracle software and create database in a separate pool.
The rpool can only be a mirror (raid1). You can have different pools for what you described. You just have to keep in mind that your raid decision is good for your performance and safety needs!
Last edited by DukeNuke2; 04-17-2017 at 08:14 PM..
Hi flexi,
Firstly , we must know the your hardware system ?
Maybe we can determine best choice for your needs to that.
if your system x86 arch maybe you can try "LSI or other Logic Configuration Utility Console " which appears in the boot stages..
You assume 8 disks , but has your system contains these from local or san ?
if your all disks has local ( SAS / Sata .. ) , then what is the your critical data ? ( database )
all disks are at the same or size ?
Yes , Raid5 can be good choice or maybe not for avaliable disk space or security requirements.
That can change to your needs.
For exa : you want to create hard raid 5 vol with 6 disks at size 300 GB. ( security : with "1 disk" failure )
then your avaliable space ( n x size -1 x size ) = 6 x 300 - 1 x 300 ( for total parity size ) = 1500 GB
So at the reality , what is your systems for solaris ( oracle sparc / x86 / non-oracle x86 .. )
in Sparc systems LSI raid controllers does not support for raid 5
if you will be use zfs , then you can use software raid with zfs ( zpool )
For exa :
Now i can say what i do with 6 disk in my sparc hardware.
* 4 disk for RAID 1E ( security two disk in teory but may be "one disk" to controller !! )
-----------------------------------------------------------------------------------------
( * You can create similiar this volume with your 6 disks )
( boot prompt )
Code:
{0} ok select /pci@300/pci@1/pci@0/pci@2/scsi@0
{0} ok show-children
FCode Version 1.00.61, MPT Version 2.00, Firmware Version 9.00.00.00
Target 9
Unit 0 Disk HITACHI H109030SESUN300G A31A 585937500 Blocks, 300 GB
SASDeviceName 5000cca01641b6c8 SASAddress 5000cca01641b6c9 PhyNum 0
Target a
Unit 0 Removable Read Only device TEAC DV-W28SS-W 1.0A
SATA device PhyNum 7
Target b
Unit 0 Disk HITACHI H109030SESUN300G A31A 585937500 Blocks, 300 GB
SASDeviceName 5000cca01642c8c0 SASAddress 5000cca01642c8c1 PhyNum 1
Target c
Unit 0 Disk HITACHI H109030SESUN300G A31A 585937500 Blocks, 300 GB
SASDeviceName 5000cca016422b48 SASAddress 5000cca016422b49 PhyNum 2
Target d
Unit 0 Disk HITACHI H109030SESUN300G A31A 585937500 Blocks, 300 GB
SASDeviceName 5000cca0164271b8 SASAddress 5000cca0164271b9 PhyNum 3
* create 4 disk with RAID 1E volume ( vol1 ) --> For your database pool
Code:
{0} ok 9 b c d create-raid1e-volume --> Create RAID 1E ( Mirroring Extending ( + Stripped ) = Striped and Mirrored disk array )
Target 9 size is 583983104 Blocks, 298 GB
Target b size is 583983104 Blocks, 298 GB
Target c size is 583983104 Blocks, 298 GB
Target d size is 583983104 Blocks, 298 GB
The volume can be any size from 1 MB to 570296 MB
What size do you want? [570296]
Volume size will be 1167966208 Blocks, 597 GB --> 4 X 300 /2 = 600 GB disk space
Enter a volume name: [0 to 15 characters] vol1
Volume has been created
Code:
{0} ok unselect-dev
* After apply this , check volume :
---------------------------------------
Code:
{0} ok select /pci@300/pci@1/pci@0/pci@2/scsi@0
Code:
{0} ok show-volumes
Volume 0 Target 381 Type RAID1E (Mirroring Extended)
Name vol1 WWID 011ebf1128d9fdcd
Optimal Enabled Volume Not Consistent Background Init In Progress
4 Members 1167966208 Blocks, 597 GB
Disk 3
Member 0 Optimal
Target 9 HITACHI H109030SESUN300G A31A PhyNum 0
Disk 2
Member 1 Optimal
Target b HITACHI H109030SESUN300G A31A PhyNum 1
Disk 1
Member 2 Optimal
Target c HITACHI H109030SESUN300G A31A PhyNum 2
Disk 0
Member 3 Optimal
Target d HITACHI H109030SESUN300G A31A PhyNum 3
* If raid volume is "inactive" state then starts
Code:
{0} ok 0 activate-volume
Volume 0 is now activated
Code:
{0} ok unselect-dev
-> Now first Raid volume ( vol1 ) is Ready..
2-) The other 2 disk with RAID1 ( via the other Raid Controller port )
* Select the disk and create hard raid.
....
....
Code:
{0} ok 9 a create-raid1-volume --> RAID 1 Mirror for Operating System ( security one disk )
....
.... same operations..
-> Now first Raid volume ( vol2 ) is Ready..
* Raid operations completed..
* I installed the Solaris OS on the this volume ( vol2 ) at the Disk Select Menu..
* when system is on :
vol2 ( in 2 disk with size 559 with RAID 1 ) ---> 2 X 559 /2 = 556 GB in OS
----------------------------------------------
Code:
# zpool list rpool
NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT
rpool 556G 108G 448G 19% 1.00x ONLINE -
# zpool status rpool
pool: rpool
state: ONLINE
scan: none requested
config:
NAME STATE READ WRITE CKSUM
rpool ONLINE 0 0 0
c6t3B347FFD52B27CEFd0s0 ONLINE 0 0 0
errors: No known data errors
Code:
# echo|format|nawk '/c6t3B347FFD52B27CEFd0/{a=$0;getline;print a RS $0;exit}'
533. c6t3B347FFD52B27CEFd0 <LSI-Logical Volume-3000 cyl 35701 alt 2 hd 256 sec 128> local02 --> ( vol2 )
/pci@3c0/pci@1/pci@0/pci@2/scsi@0/iport@v0/disk@w3b347ffd52b27cef,0
Code:
# prtdiag|nawk '/SASHBA/{a=$0;getline;print a RS $0;}'
/SYS/MB/SASHBA0 PCIE scsi-pciex1000,87 LSI,2308_2 8.0GT/x4 8.0GT/x4
/pci@300/pci@1/pci@0/pci@2/scsi@0
/SYS/MB/SASHBA1 PCIE scsi-pciex1000,87 LSI,2308_2 8.0GT/x4 8.0GT/x4 --> ( raid controller port for vol2 )
/pci@3c0/pci@1/pci@0/pci@2/scsi@0
note : my raid LSI controller(s) does not support other raid levels ( eg : raid5.. )
Code:
# raidconfig list all -v|grep Support
Supported RAID Levels: 0, 1, 1E
Supported RAID Levels: 0, 1, 1E
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04-17-2017
