OVH Community, your new community space.

Raid0 on EG BestOf server. Is it possible?


ovhfreak
16-08-2009, 08:32
hi, sorry for everything.. I think its a forum and we should respect the aim of forum.
I will try to make a small guide to help all members about successful RAID 0 configuration...


DedicatedPros
10-08-2009, 20:38
that is the down side, yes

derchris
10-08-2009, 20:37
But then you can't takeover the server

DedicatedPros
10-08-2009, 20:00
Why do you need the manager password? If you need a reboot you can IM/email that person, there should be no need for uber-root access to the server

derchris
10-08-2009, 18:06
And we all saved $10

gigabit
10-08-2009, 17:06
I follwed the guide above and it worked fine Not hard to run the commands in recoverd mode, reinstall the os then expand the partition.

ovhfreak
10-08-2009, 17:00
Ya, I know, Its not easy to believe on someone in this virtual world !! But bro, I can only assure you, rest depends on you !!

Morever, I already said that OVH Manager is always safe since you can recover your OVH Manager Password any time via forgot password option !

darkfyre
10-08-2009, 16:55
i dont think anyone here would share their manager password, let alone root password to a member on this forum who join a few days ago and only made 2 posts.

ovhfreak
10-08-2009, 16:47
I know that a few lines are there at starting posts about converting Raid1 to Raid 0 but they are incomplete and lacks some very important steps !

Myatu
10-08-2009, 15:39
"Can you give me access to root and your OVH Manager so I can do this for you?" and gone is your server... Plus your US$20...

I'm skeptical, ovhfreak, sorry...

gigabit
10-08-2009, 15:19
The guide is just a bit further up in this topic, don't know why hes thinks people will pay him to type a few lines

darkfyre
10-08-2009, 15:14
or you could keep within the spirit of this forum and post a small guide ..

ovhfreak
10-08-2009, 15:02
Hi, All OVH Server users there !!
I have successfully changed my Hardware Raid 1 to Raid 0 and I'm able to use full 1.5 TB on all Linux distributions !!

Actually, It need settings to be done in rescue mode, (i.e tw_cli etc.) and also in the OS after reinstall !!

See this, I'm using proxmox VE on my EG best of Server and I use full 1.5 TB

# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 20G 676M 18G 4% /
tmpfs 2.0G 0 2.0G 0% /lib/init/rw
udev 10M 32K 10M 1% /dev
tmpfs 2.0G 0 2.0G 0% /dev/shm
/dev/sda2 1.4T 7.7G 1.3T 1% /var/lib/vz
root@ns206942:/vz/private/101#

Sernus
25-07-2009, 16:32
Quote Originally Posted by slayer2005
1. Open Up OVH Manager, select the dedicated E08 Server --> click services --> click netboot.

2. Once you have clicked netboot, another screen will show up, you choose the option "rescue pro", then enter in your contact details, then enter it.

3. Go back to services, and do a hard reboot to reboot the server.

4. Once the server is up, login to the server via ssh.

5. You then type the following commands in the following order:

1) tw_cli info c0
2) tw_cli maint remove c0 p0
3) tw_cli maint remove c0 u0
4) tw_cli info c0
5) tw_cli maint rescan
6) tw_cli maint createunit c0 rraid0 p0:1

6. You then exit ssh, go back to the manager, then click reinstall the OS.

Once the reinstall is complete, it should have the 2 hdd's in a raid-0 array.



works fine buddy,done it many times.
Didnt work for me i have done that more then once i get this

Ctl Model Ports Drives Units NotOpt RRate VRate BBU
------------------------------------------------------------------------
c0 8006-2LP 2 2 1 0 2 - -

Unit UnitType Status %Cmpl Stripe Size(GB) Cache AVerify IgnECC
------------------------------------------------------------------------------
u0 RAID-0 OK - 64K 1863.02 ON - -

Port Status Unit Size Blocks Serial
---------------------------------------------------------------
p0 OK u0 931.51 GB 1953525168 STN604MH11BBDB
p1 OK u0 931.51 GB 1953525168 STN604MR17R2LP

Unit UnitType Status %Cmpl Port Stripe Size(GB) Blocks
-----------------------------------------------------------------------
RAID-0 OK - - 64K 1863.02 3907046144
u0-0 DISK OK - p0 - 931.512 1953523072
u0-1 DISK OK - p1 - 931.512 1953523072

df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 9.7G 842M 8.4G 10% /
/dev/sda2 952G 33M 903G 1% /home
/dev/shm 3.9G 0 3.9G 0% /dev/shm

Disk /dev/sda: 2000.4 GB, 2000407625728 bytes
255 heads, 63 sectors/track, 243202 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 1275 10241406 83 Linux
/dev/sda2 1276 127417 1013235615 83 Linux
/dev/sda3 127418 127482 522112+ 82 Linux swap / Solaris

Model: 3ware Logical Disk 0 (scsi)
Disk /dev/sda: 2000GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 32.3kB 10.5GB 10.5GB primary ext3 boot
2 10.5GB 1048GB 1038GB primary ext3
3 1048GB 1049GB 535MB primary linux-swap

Each time i go to manege and reinstall it
1 on manage dont show left space for add the 2tb
2 after reinstal it and when you do df -l you dont have the 2tb space but only the 1tb.

Any ideas for solve this ??

swas1982
09-05-2009, 07:58
Hi,

Can anyone suggest me if it's possible to have RAID1 on EG BestOf server, i mean mirroring ? I understand it comes with a HW raid. What steps shall i follow for creating RAID1 ? What i comprehend is i have to change the Step 6 of the steps given below to rraid1.Is that code change enough or it requires any other changes or commands ?


1) tw_cli info c0
2) tw_cli maint remove c0 p0
3) tw_cli maint remove c0 u0
4) tw_cli info c0
5) tw_cli maint rescan
6) tw_cli maint createunit c0 rraid1 p0:1 ( rraid0 for RAID0 and rraid1 for RAID1)

Thanks

hashbangbinbash
29-04-2009, 15:12
Nae bath'r beg man, et werked.

hashbangbinbash
28-04-2009, 16:17
Quote Originally Posted by slayer2005
1. Open Up OVH Manager, select the dedicated E08 Server --> click services --> click netboot.

2. Once you have clicked netboot, another screen will show up, you choose the option "rescue pro", then enter in your contact details, then enter it.

3. Go back to services, and do a hard reboot to reboot the server.

4. Once the server is up, login to the server via ssh.

5. You then type the following commands in the following order:

1) tw_cli info c0
2) tw_cli maint remove c0 p0
3) tw_cli maint remove c0 u0
4) tw_cli info c0
5) tw_cli maint rescan
6) tw_cli maint createunit c0 rraid0 p0:1

6. You then exit ssh, go back to the manager, then click reinstall the OS.

Once the reinstall is complete, it should have the 2 hdd's in a raid-0 array.



works fine buddy,done it many times.
So I tried this...

rescue:~# tw_cli info c0

Unit UnitType Status %Cmpl Stripe Size(GB) Cache AVerify IgnECC
------------------------------------------------------------------------------
u0 RAID-0 OK - 64K 1397.27 ON - -

Port Status Unit Size Blocks Serial
---------------------------------------------------------------
p0 OK u0 698.63 GB 1465149168 GTA200P8G2XBXA
p1 OK u0 698.63 GB 1465149168 GTA200P8G2TK4A

rescue:~# tw_cli maint remove c0 p0
Exporting port /c0/p0 ... Failed.

(0x0B:0x0030): Remove operation invalid for unit

rescue:~#

Josh
15-04-2009, 10:42
Incredible. Thanks for all the help guys.

Andy
15-04-2009, 10:09
Quote Originally Posted by slayer2005
1. Open Up OVH Manager, select the dedicated E08 Server --> click services --> click netboot.

2. Once you have clicked netboot, another screen will show up, you choose the option "rescue pro", then enter in your contact details, then enter it.

3. Go back to services, and do a hard reboot to reboot the server.

4. Once the server is up, login to the server via ssh.

5. You then type the following commands in the following order:

1) tw_cli info c0
2) tw_cli maint remove c0 p0
3) tw_cli maint remove c0 u0
4) tw_cli info c0
5) tw_cli maint rescan
6) tw_cli maint createunit c0 rraid0 p0:1

6. You then exit ssh, go back to the manager, then click reinstall the OS.

Once the reinstall is complete, it should have the 2 hdd's in a raid-0 array.



works fine buddy,done it many times.
What is the command to go back to RAID1 and to split the drives into no RAID? I want to make a topic with this on it and get it stickied

slayer2005
15-04-2009, 10:01
Quote Originally Posted by Josh
I found series of instructions for 3ware raid controller. Can anyone confirm EG series use this type of controller? It'd be pity to order the server to only find out few moments later to be stuck with raid1.
1. Open Up OVH Manager, select the dedicated E08 Server --> click services --> click netboot.

2. Once you have clicked netboot, another screen will show up, you choose the option "rescue pro", then enter in your contact details, then enter it.

3. Go back to services, and do a hard reboot to reboot the server.

4. Once the server is up, login to the server via ssh.

5. You then type the following commands in the following order:

1) tw_cli info c0
2) tw_cli maint remove c0 p0
3) tw_cli maint remove c0 u0
4) tw_cli info c0
5) tw_cli maint rescan
6) tw_cli maint createunit c0 rraid0 p0:1

6. You then exit ssh, go back to the manager, then click reinstall the OS.

Once the reinstall is complete, it should have the 2 hdd's in a raid-0 array.



works fine buddy,done it many times.

Josh
15-04-2009, 09:49
I found series of instructions for 3ware raid controller. Can anyone confirm EG series use this type of controller? It'd be pity to order the server to only find out few moments later to be stuck with raid1.

Andy
15-04-2009, 09:42
It is possible using a series of commands in SSH. Do a forum search and see if you can find something.

helpseeker
15-04-2009, 09:40
AFAIK raid hardware cannot be modified and OVH staff do not want to modify it ( you need to do that from the bios... and as OVH do not provide a real KVM you cannot do that by yourself )

Andy
15-04-2009, 09:29
It is possible, but I personally don't know how. Perhaps someone has an idea and can post here.

Josh
15-04-2009, 08:42
Hello,

can anyone enlighten me whether or not it's possible to have raid0 on EG BestOf server? I understand it comes with HW raid. So the question is, is it possible to reinstall the OS from OVH Web Manager and setup raid0 there? I know I had success with SP BestOF series, but they come with software raid instead of hw like EG BestOF.

Thank you.