8

How I Learned to Stop Worrying and Love Software RAID: Back when all of our server storage was on SCSI disks, I used to be pretty particular about using good hardware RAID -- we used HP/Compaq SmartArray controllers and had extremely good luck with them. I operated for a long time under the assumption that software RAID would cause a performance hit and ...


8

I've done a bit of research into your problem. Not easy but looks feasible. The area of code breaking you is this (well, in newer kernels): fs/xfs/libxfs/xfs_sb.c 271 /* 272 * Until this is fixed only page-sized or smaller data blocks work. 273 */ 274 if (unlikely(sbp->sb_blocksize > PAGE_SIZE)) { 275 ...


7

I blame HP for convincing people to buy the ProLiant DL360e/DL380e series of servers. The storage controller is a big compromise on those servers. Here, you basically installed onto one of the two disks. The HP Dynamic Smart Array needs a binary driver to really function... See this Red Hat knowledge base article. You'll have to slipstream it into the ...


6

ESXi is not supporting fake raid. You need to create 2 VMFS and add 2 disk each on one of the data stores and setup software RAID on the guest OS. You will have redundancy for VM, but not for ESX itself.


5

You should use supported hardware. Fakeraid solutions aren't in the scope of VMWare ESXi blessed setup. You can make things work by acquiring a hardware RAID controller from the VMWare Hardware Compatibility List, though.


4

You need the equivalent of EL5.7 or 5.8 in order to have an installer that supports the newest generation of Smart Array controller. Please see the footnotes on the HP/OEL technical exceptions matrix. You need Oracle Linux/UEK 5.8. That's the minimum-supported installer version. What version is your OEL installer? Edit: This was an issue with multiple ...


4

actually intel storage matrix software would be your best bet.... but you would need to first go into the BIOS and change your controller from RAID>ADAPTEC to RAID>INTEL (this will brick your current install of server08, yes that means a fresh install) some open source software has a hard time installing on the intel fake raid so supermicro (and a few ...


3

This just doesn't work. I'll accept that the documentation which influenced the decision to buy this solution was flawed and that the HP Smart Array B320i RAID controller is not capable of logical drive expansion, migration or modification. It's a shame. In this specific case, I had to rebuild the server in order to add a new disk to the array set.


3

The HP ProLiant N54L uses a FakeRAID controller. In order to see the drives, you may have to modify the BIOS settings to use AHCI mode.


2

Please see the links and answers at: HP DL380e Linux not seeing drive array for installation You're running into a RAID controller and drive incompatibility of this server. The Dynamic Smart Array RAID controller installed on the machine requires a binary-driver that needs to be slipstreamed into your installation. There's a driver-disk available for this....


2

I personally suggest to set drives as AHCI and use only linux mdadm. The reason is that if you move your drives to whatever other server, you just use the same mdadm utility and you don't have to care wheras there were some "compatible" metadata before or not.


1

Commands which I have used to convert my RAID10 from IMSM to software RAID: Check which set of the disks: # mdadm --detail /dev/md/vol0 Number Major Minor RaidDevice State 3 8 0 0 active sync set-A /dev/sda 2 8 48 1 active sync set-B /dev/sdd 1 8 16 2 active sync set-A /dev/...


1

Take a look at dmraid. If you are lucky enough to have supported metadata it might be able to help. But be very careful. I'd use it only readonly to get the data and then get rid of the software raid. Edit so that my comments dont get too long: As far as my understanding of this trickery goes, yes. Fakeraid is called fake, because it does not do anything. ...


1

The ilo can't display drive information if you don't have the raid tools suite installed on the machine, so that doesn't mean anything. I'd boot to the controller interface, and make sure the array is configured correctly.


1

Fakeraid on dual-boot is kind of a nightmare. You'll likely be better off with mdraid than dmraid on the Ubuntu side, but it will still take a bit of work. Here's a[n archived] link to a good set of tips from someone who was able to sort it out for Ubuntu 12.10 and Win7 x64.


1

Thanks to all the help of my friend, the problem is solved. On the first attempt, he commented out the line ti->error = "Error creating mirror dirty log"; in the dm-raid1.c, and inserted some debugging lines into dm-log.c to determine what caused the above error: log = kmalloc(sizeof(*log), GFP_KERNEL); if (!log) ti->error = "kmalloc ...


1

Why are you using a ddf format raid array in the first place? You appear to be trying to activate it with dmraid, which hasn't seen any development for several years and is more or less depreciated. mdadm is much better supported, and recent versions do support the ddf format, though it's native format is preferred. Make sure you have loaded the dm-log ...


1

I had the same issue with but with a diffrent distro. For the installer, no disk existed in hardware since P420i was not enabled properly. To solve it, add "hpsa.hpsa_allow_any=1" as a kernel boot parameter to call the HPSA module at boot. The disks will be recognized as /dev/sdX depending on your RAID configuration (and the card itself as /dev/sg0). After ...


Only top voted, non community-wiki answers of a minimum length are eligible