Well it appears to be a hybrid: Performance Performance largely depends on how you configure the basic parameters of the RAID array, and less on the specific solution. Let’s take it case by case: Open Source Consulting Domain Registration. So you can’t just say “I want to write some data to drive 0 but not to drive 1”. Although it is conceptually possible for any software RAID format to be supported by any other operating system, since it’s just software , in practice, most operating systems present incompatible RAID formats that only that operating system can recognize. It doesn’t hurt to install another copy, but in cases of a disk failure, booting is going to be the least of your concern.

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But still have a firmware broblem. Loading user firmware failed, using default values [ 8.

Downloads for IntelĀ® Server System RWTTGSR

The BIOS will tell you that it’s one “disk”, and as far as the BIOS is concerned, it isn’t even particularly aware that you’re dealing with multiple disks. Super User works best with JavaScript enabled. If you mean the data path, it is always handled by the CPU and thus, the operating system unless you have a linuz hardware RAID card. Please advise to me.

But you will need to carefully research this before you make a move, to make certain that it will be compatible if you care about it being compatible.

Open Source Consulting Domain Registration. I can build it using mdadm, so Linux doesn’t actually hide the underlying disks from me.

[Linux-PowerEdge] CentOS on Intel C600 with 3TB drives (GPT corruption)

It is mainly intended for workstations where people don’t regularly backup, and for small SOHO servers that are backed up and can tolerate a day or so of downtime if a disk crashes. Now to directly answer your questions, after I’ve given you the long-winded answer: By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features.


Default OEM configuration being used: Ordinary linux software RAID, using mdadm command. Sometimes, between two different versions of the same operating system, the RAID format will be broken, leading to incompatibility.

All processing is done by the CPU with no hardware support. Secondly, about grub and MBRs: Email Required, but never shown.

Downloads for IntelĀ® Server System R1304WTTGSR

Quite often it is faster to replace the disk then erase everything on them and recreate the array and then boot from a backup restore disk then restore from backup. Robert Siemer 3 8.

This means that your BIOS and other operating systems think that you really have two separate disks, but purely at the software level, your operating system uses some OS-specific on-disk format for RAID mirroring, striping, parity bits, whatever. Post Your Answer Discard By clicking intl Your Answer”, you acknowledge that you lihux read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

Western Digital makes “Red” drives that are supposed to be used in software RAID arrays that do not do this, they just fail a sector read immediately when they detect a bad sector and remap it so the array manger can take the data from the sector on the good drive and write it to the drive with the failed sector. C00 Linux md i. Performance largely depends on how you linxu the basic parameters of the RAID array, and less on the intell solution.

The problem is that this remap only happens on a write – the disk will delay remapping if a read occurs on a bad sector and on some disk models will repeatedly re-read the bad or failing sector, comparing the result each time until it decides it has the best data it can get from that sector before remapping it.


For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. Remember, you can mirror individual partitions if you want, so the disks don’t have to be bit for bit identical in software RAID.

limux Note that registered members see fewer ads, and ContentLink is completely disabled once you log in. On reboot you now have 2 disks with the same sector which might have different data between disks, so now the software RAID manager does not know which is “good”, the disk that didn’t have an error or the disk that remapped a sector with the best approximation intfl the data that it had.

Join our community today! Regular workstation disks as they age start to develop bad sectors which are internally remapped by the disk into spare sectors. I’m port from centos 6. It is “better” since if you are rebuilding an array you are doing it from the OS not from BIOS so the rebuild speed is much faster.

You are currently viewing LQ as a guest. Again, you will have to research it on a case-by-case basis. Intl the disks appear as one at certain layers, and as two at other layers.