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I am setting up an onsite backup server in RAID 1 (soft) with low usage. I prefer quietness and reliability over performance: so I selected one of these "green" disk. Some NAS brand recommand these disks which are not recommanded by other NAS brands. I read a few interesting articles:
But I do not get it. Is it safe to use a Desktop Edition disk in a RAID 1 setup? What are the impacts? | |||
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I've learned the hard way that "green" drives should never be used in a RAID application. More often than not when the drive spins down to save power, the RAID controller will spit the drive out, resulting in a degraded array. If at any point before you are alerted to this and fix it another drive in the array is booted or fails, then you have the real potential for data loss. I've had good results with the Black series of WD drives in arrays, however for mission-critical storage I would only recommend RAID-specific drives (such as WD's RE4). | |||
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Green drives are usually not recommended for boot drives. By design they spin down on idle to save power and that creates issues. There are also other technical issues with green drives as they do not have time limited error recovery (TLER) and that can cause issues including a drive that is suddenly "bad" In the WD external drives that use RAID 1 they use a green drive and I often find they take a few seconds to spin up and that creates issues for some apps. Great for backup and general storage. WD Black drives work very well and not a lot more but they do use more energy( not sure how much more) and may be a bit louder but the case can deal with the noise | |||||
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