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Solved: RAID Array Questions

Traditional RAID levels RAID types explained Below is a description of the different types of RAID that most commonly used in SAN storage arrays. So my answer is none of the above.  :-/ I'm tiering to save on cost and getting more bang for my buck.  My biggest storage hogs are Exchange 10 and file There's a link and an adapter inbetween as additional possible points of failure, so it's better to have Storage disks to be one array and if link fails, array will still Tech Support Guy is completely free -- paid for by advertisers and donations. http://bornsunsoft.com/solved-raid/solved-raid-vs-imaging-newb-questions.html

In that case you put all your stuff on one array but I still like a small drive for the OS, RAID 5 for the data and apps, and another So your disk layout would then be. 2x 256MB USB disks as raid1 mounted as /boot 3x unpartitioned disks raid5 assembled as /dev/md0 >> 3 partitions on /dev/md0 /dev/md0p1 as / Creating your account only takes a few minutes. Backed up image of the drive (it was my bootable C: drive) with Macrium. 1a. http://www.tomshardware.com/answers/id-3019168/question-raid-arrays.html

SearchDataBackup Get smart with cloud backup security through 'CIA' Encryption is just one important element of backup data security in the cloud. Mirroring striped sets accomplishes the same task, but is less fault tolerant than striping mirror sets. RAID 10 for SAS, RAID 6 (maybe with a hot spare) for the SATA pool.  Don't put anything on the sata that you expect speed out of, watch disk latency, and move Find Us SearchStorage Search the TechTarget Network Sign-up now.

As long as multiple drive failures occur in separate mirror sets, the RAID set is still available. So my answer is none of the above.  :-/ I'm tiering to save on cost and getting more bang for my buck.  My biggest storage hogs are Exchange 10 and file Computer Type: Laptop System Manufacturer/Model Number: HP Zbook 17 OS: Windows 10 Pro CPU: Intel i7-4930MX 3.20 GHz Memory: 32GB Graphics Card: NVIDIA K5100M Quote DeaconFrost View Profile View Forum Posts The logical disk is called a LUN or logical unit number.

If you lose a drive in a stripe set, all access to data must be from the other stripe set, because stripe sets have no parity. Also, for RAID 1 you would need at least another drive since this is mirrored. I can't really afford a 3rd drive to implement RAID 5 (maybe later...) My questions are more practical. here If one of the disks fails, the other can be used to retrieve data.

I also have a 250GB Samsung 850 EVO that I just put in my desktop a couple weeks ago. RAID 1: RAID 1 is called disk mirroring. Maybe you could create one big RAID 10 array out of 10 disks in SERVER + 1 hotspare + 1 coldspare, and one RAID 5 array out of 5 disks in STORAGE enclosure. Which of the following retains the information it's storing when the system power is turned off?

Start my free, unlimited access. why not try these out Windows RAID 0 question performance question in Drivers and Hardware Hi folks / performance gurus Got an old server 4 HDD storage bays and SSD with Raid 0 -- created 2 Join the community Back I agree Test your smarts. 88% of IT pros got this right. Creating your account only takes a few minutes.

As you mention, changing the disk configuration will make the original data unusable. 3 Anaheim OP Labsy Jan 2, 2016 at 2:15 UTC SGH d.o.o. weblink But it should work easily with a system disc like this guy mentions here: http://ubuntuforums.org/showthread.php?t=852650 Adv Reply July 21st, 2008 #6 windependence View Profile View Forum Posts Private Message I The Azure collaboration will ... You say "software RAID," but you have a 420i, so you're likely using hardware RAID provided by the controller card.

Can I even do it, without erasing the data that's on the current drive? It will choose between RAID 3 and RAID 5, depending on which RAID set type will perform better with the type of data being written to the disks. go with RAID 10 even though it eats up a big portion. http://bornsunsoft.com/solved-raid/solved-raid-0-uh-o.html Not a member?

If you are using software-based RAID, then more spindles within the group means longer rebuild times. RAID 5 is the most common method used, since it achieves a good balance between performance and availability. Additional Info: HP H222 Bus Adapter P420i Array Controller ----------------------------------------------------------------- I was also wondering what would be the best practice when converting a SAS mode to RAID mode on the server.

Reply Subscribe Best Answer Habanero OP pchiodo Feb 10, 2012 at 11:14 UTC As SAM would say - RAID 5 is a no go - Yes you get more space, but 

Reply Subscribe Best Answer Anaheim OP Labsy Jan 6, 2016 at 12:04 UTC SGH d.o.o. This RAID type is not currently used very often because it performs poorly when there are a lot of little requests for data, as in a database. Availability is increased because the RAID controller can re-create lost data from parity information. For your application I would allot 4 - 6 drives for each array you intend to use. - You could setup two 1.2TB arrays using the eight 600GB drives.

That would be an option, but I fear that it's even more complicated. Regarding migration to any other RAId type, just make sure your cloning/imaging software will recognize RAID array. I've been hung on my own petard with RAID 5 in the past regarding the slow in/out and the difficulty rebuilding. his comment is here RST says 3815 GB total size, roughly 4 TB available, which is what I would expect as RAID 0 supposedly makes available the sum of the drives in the array as

E-Zine The state of flash storage performance E-Zine Announcing the best data storage products of 2016! What do you think? (another howto for raid1 at hardy installation: http://www.howtoforge.com/how-to-ins...software-raid1) - Do I have to use the alternate version, to get the raid option at the installation point (server but with the small difference that I partition my array instead creating arrays on partitioned disks !. This has several advantages ( read on ).

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