RAID 5 for example requires at least 3 disks but instead of storing a copy of the data itself it stores what’s called a parity block, basically check, a signature, that means if a drive were to fail you can do some maths with the remaining data and the parity block and re-create the lost data. The other kinds of RAID all require more than 2 drives which is where these 4 bay units come in. It gives you faster performance and lets you use the full capacity of both of your drives, but if either drive gives up the ghost you’ve lost ALL your data. The reason for that is RAID 0 ‘stripes’ your data, basically it splits it in half and writes half to one drive and the other half to your other drive. Running RAID 0 on a NAS is a terrible, awful, horrific idea.

There are other types of RAID you could run here, including RAID 0, but I said ‘could’ for a good reason. That does mean you need identical drives and that you will only be able to use the capacity of one drive since the other is just duplicating the data. RAID stands for redundant array of inexpensive disks, and RAID 1 means the data you write to one drive gets 1:1 copied to the other so if one drive fails the data is stored on the other. In general, you want at least 2 drives in that NAS in what’s called RAID 1. Basically it’s a computer with storage drives in it that you access over your local area network or LAN, rather than direct attach storage devices like a USB hard drive. A quick refresher on what a NAS is for anyone who isn’t sure, a NAS is a network attached storage device. You can easily search the drugs which you lowest price on cialis will get for yourself.Ģ bays, or 4? Seems like a simple choice right, but there’s a few things you should know and might want to consider before picking one up. cialis 40 mg The large intestines viagra on line order have the extra function of reabsorbing water back into the body to prevent diarrhea (which can lead to dehydration).

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