It was pretty much trouble free to crossflash. Just a couple of small comments: 1. FreeDOS already creates some of the files and when you overwrite them from the zip file you may get some errors like command not found or something. This could be a bit clearer 2. Booting from a disk within the HBA requires to flash the boot roms. I read the guide multiple times and I didn't find it quite so apparent.
Its just that few do, so I hadnt thought it relevant. But I guess some will. Hope you like the update, and thank you!
Chris Parisi 5. Awesomely thorough guide - I wish I followed this from the start and didn't waste several evenings running into dead ends wiping, flashing, re-flashing, re-wiping, etc Thank you for putting this together and explaining the background and reasoning for having to follow the steps so specifically. I suppose I have to finally start my "real" project now, lol. TheWasher 5. Really good guide! Also, agree with you about these cards being bullet proof. I tried flashing many times to cross flash to LSI e and eventually I sorted it by running Megarec.
Thank you for your time to share. Outstanding attention to detail. Thank you for writing all this up. MattTheTechLV 5. Given that the MTBF is the same for the drives, the lower number of drives has a lower potential for a failure. The more drives you have, the more likely a failure. This ends up without a parody Drive involved which means a failure of one of any of the discs would result in the loss of all data in the raid array. RAID 1 offers complete redundancy.
With 2 drives, it will mirror all data to the other drive, with 3 drives, it will mirror to both the other drives. It will continue like that for as many drives as you put in. Your space will be limited to your smallest drive in the RAID 1, no matter how many drives you have.
Chances of losing data in a RAID 1 get increasingly lower the more drives you have, but it also makes it very expensive per GB. Hope that helps. I would like to know if it is possible somehow to install Windows 10 on Raid 0? If so, how would I proceed?
When prompted, you would then insert the disk with the driver on it. Most RAID manufacturers have an option to create the driver disk. However, if you have a HDD Raid controller card, or a raid controller built into your bios, then you can create the raid there.
Then using the Drivers for the controller, you can install Windows.. Anyway, I think the dual drives in the enclosure are fine but power suddenly just cut off. My question is this: Can I take out the platters and put them in a dual dock 3.
Or is there a way to repair the power issue in the enclosure? It fired right up perfectly. Daniel Smith 4 drives of 3 Tb in raid 10 is 6 TB because the you combine 2 drives as raid 0 and the other 2 are used a mirror Those who work with large amounts of data should choose between raid 10 or 6 In my view today raid 5 is no longer a good solution because of bitrot..
However the most secure is in my view raid 6 till the grow beyond the max of raid 6 is reached and it looses its ability to proper restore the files. Raid10 Am I right to be scared of mirroring?
Is Raid10 failure along similar lines possible? Even a software raid should be telling you which drive is malfunctioning — at least Linux will flood error log with messages of failed drive.
If you have 4 separate raid 5 arrays, would a hard drive failure in one of the arrays affect only the performance of the one array and the others would remain unaffected? Can anyone explain this? You have a file that is broken into 10 chunks, and those chunks must load into memory before you can use them.
So on one dish, your hard drive controller loads block 1, then block 2, then block 3… etc. In raid 0, it would load block 1 and 2 at the same time, then block 3 and 4. But if you lose a disk, you only have half your file. What you are recommending will not increase speeds by much, unless you are loading to files in separate folders. Thanks for beautifully explaining the types of RAID.
I am a tech guy and was using RAID 5. Somehow, I had lost the data from it. So, I asked the solution from my colleague and he advised me to use Stellar Phoenix raid recovery software. This works great for me. Stellar Phoenix is a scam company and this fake comment is just sock puppet marketing. Buyer Beware. Great post! When backing up data I always use the style strategy. But, more is always better.
You opt for Dual mirror: so in that case, no need another drive for TM? If TM, then the drive is also need 3TB? You can put other data on that partition but it apparently more common to use a separate partition. The mirrored drives protect your data against 1 disk failing.
Accidental errors like incorrectly deleting a file or misplacing it or data corruption are more common and a bigger worry. That is why you use Time Machine for the data residing on the internal drive but of course the same also applies to the data that will be stored on those mirrored drives. So in my opinion, the ideal setup is that the third drive on which you put your Time Machine data is also a 3GB drive, split into one partition for Time Machine and a second bigger partition on which you occasionally copy the main data stored on your mirrored drives.
I know that adds to the cost but I like having a spare copy of data and I like having systems with disks that are all the same size. Easier to resell afterwards, easier to repurpose as a 3-disk RAID set if your storage needs change over time. Also if I would like to use this ext for Time machine, do I need to partition as well? As have3 HD 3TB for data? I would personally opt for dual mirrored 3TB drives instead of 4x 1 TB. It is simpler, offers better performance, makes less noise and uses less power.
When you add a third disk for Time Machine you can still do it all with a 4-disk enclosure, instead of having to buy a more expensive 5-drive system. With 3 disks in use, you still hafe a spare slot if you want to expand storage in the future. If you go for a NAS box its software takes care of making those mirrored drives appear as one partition. Check out YouTube videos on setting up a Synology, Qnap,… system — it is pretty straightforward. One question. If we take RAID 5, what is pairity checksum features.
If we have 4 disk and configured raid It will do stripping means fast data flow as data being distributed but what is pairity for? The parity is used for recovering data in case of drive failure. With RAID6 two disks can die simultaneously. More detailed descriptions of the way parity works can be found elsewhere on the web. This page is meant to give a general overview.
Having an extra offsite disk is a good idea. In many NAS enclosures it is a bit of a hassle to swap drives. Once something is clunky, you stop doing it after a while. Why not use a separate harddisk docking station for the off-site copy? I am looking to install an external multiple bay NAS drive for home use.
Approximately TB, keeping in mind performance and that I will be backing up all data on an external HDD stored in my safe. What would be the best RAID configuration to use? Thank You for any insight and information. What an excellent explanation of RAID….. Thank you so much. Hi, I have read your explanations about RAID configuration and it is very much informative with pictures. If I understand your first question correctly, you are wondering if you can use a smaller drive for parity compared to the other drives in the RAID set.
The hardware or software RAID controller determines if you can mix different sizes and types of drives. Many require all drives to have the same capacity. Alternatively they use the capacity of the smallest drive across all of them. Please note that it is 6 gigabit per second, not 6 gigabyte per second. There is some overhead which means the fastest real transfer speed is around megabyte per second.
A hard disk cannot reach that maximum speed, only SSDs are capable of doing that. You should also keep in mind that if you copy files from one logical drive to another on the same HDD, your computer is reading from and writing to the same drive simultaneously.
That also slows down the data transfer. To take advantage of Sata 3 speeds, you need both a Sata 3 drive and a Sata 3 controller. Also as noted, the 6 gigabit-per-second transfer rate specified for Sata 3 is only what the controller is capable of. A Sata 3 hard disk will never achieve a full 6Gb per second transfer rate, but it will be way faster than a Sata 2 drive. SSDs will get you much closer than any hard drive, but no storage media will actually ever reach the maximum transfer rate of the controller.
The type of data being transferred is a significant factor in this as well. Also the 6Gb per second Sata 3 transfer rate only applies to sequential reads, which are faster than random reads, particularly on rotating media. Write operations are much slower, as the media itself is the bottleneck. Can you please tell me what is the maximum size for one virtual disk under RAID 1. This option erases all partitions currently located on the primary hard drive, except for the diagnostic partition.
If the diagnostic partition is present, it remains untouched. If you plan to install an operating system on the Sun Fire X M2 server, you need to make sure that the BIOS is set up correctly before you install the software. See the procedure that matches the operating system you plan to install. If the default has not been changed, you do not need to perform this setup for the for a Solaris or Linux operating system.
Refer to the chapter that corresponds to the operating system that you want to install for further details on configuring RAID:. The following is an overview of the possible methods of installation for the operating system that you plan to install. See the specific operating system section for further details. This method includes installing the operating system directly onto the server, using the server's onboard DVD, a USB connected drive, and a VGA monitor attached the the system.
This method includes setting up an installation on a host server, and then installing the operating system over the network. For more details on network installation for your specific operating system, refer to the instructions included in your installation software or the online documentation referenced in the specific operating system chapters in this document. Replies Dryne 2 Iron. In response to Dryne. Best of luck! Jim Were you able to install the October version 20H2 update in the same fashion?
RonOnThePond 2 Bronze. Jim, thank you for your posts, which give me hope for a solution! I appreciate any help or direction you can provide. In response to RonOnThePond. Wishing you the best of luck! Post Reply. Top Contributor. Dell Support Resources. Latest Solutions. Can't find what you're looking for? You can post your question in our community. Sign up now.
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