Why RAID 5 (or 6 for large array) with NAS disk wouldn't be a right strategy to ensure both safety and availability ? So either you buy a new one quickly and you pray in the meantime or you have a good backup ! But be warned that you are at risk because a disk may fail. Otherwise, to answer the PO question: if you really want to begin a RAID-5 with two disks, I think it's possible with mdadm to build a degraded array.
mdadm for the RAID part, borg for the remote part and you keep a KISS approach. Thus, you save the local backup (time, money, annoyances. ), why RAID 5 (or 6 for large array) with specialized NAS disks wouldn't be a right strategy to ensure both safety and availability ? You monitor the SMART status of your disk to guess if one must be changed by precaution and if you accidentally remove a file on your system, you just get it from your remote backup. Since the remote backup is mandatory (because of theft, fire. It will work 2 or 3 months and then something goes wrong and it's never fix because of lack of monitoring, alerting, time. You have to define the strategy, implement it, monitor it. I think that deploying such complex strategy is not a good idea for the mass. And having both local and remote backup is a pain to implement I know that the right strategy is a local backup and a remote backup and a disaster recovery site and clusters and archiving and bla bla bla but it's not easy to implement and it may cost money. If you're using only online storage for your backup, it may take a while to restore the backup. So what would happen when i want to expand and add a drive for more storage? Would i need to buy 2 instead of 1 and have 1 as the backup drive and the other as main 2?ĭata availability is an important thing for business continuity. It was simple to set up and once it's up it pretty much runs w/o any input from me.
That also has a simple SMB share, and she uses an android TV box and Kodi to watch whatever stuff she or her kids want. I have another job that then runs at 4am, that backs up just movies/tv shows from my Mom's, to another another remote single drive OMV at my sisters. This job has the delete trigger enabled at all times. Once or twice a month I'll log in and enable the delete trigger and run the job manually, to bring Drive A and Drive B completely in sync.Įvery day at 3am, a job runs that backs up my NAS's "Drive B" to a remote single drive OMV at my parents house. I personally leave the delete trigger off, that way if something is accidentally deleted, it stays on my 2nd drive.
I have one job that backs up to a 2nd drive on my NAS. Getting the timing down correctly can be tricky. set up a simple rsync job in the webUI to backup Drive A, to Drive B. this will house all your data for services, etc. and I don't run any form of RAID at all.Įasiest way to do that, is to set your "main" drive (Drive A).
only common accessed data is placed on the cache drive so there is no "waste" of your limited SSD space There is a couple second increase in time to load the controller at boot before the windows logo appears but the speedier load time for windows more than makes up for it.For example having one main drive and doing automated incremental backups to a second backup drive.Įdit: Personally I'm more concerned about backing up my data, than it's availability (as tkaiser loves to point out in raid threads). I had to configure BIOS to boot to the alternate controller after I configured the SSD and HDD in hyper duo mode it boot to windows fine, after a few reboots and few loads of common programs the system was performing MUCH quicker than before.
I didn't have to reload windows either, I installed the card first before connecting drives and installed all the drivers then shutdown and connected drives. I am only using the Hyperduo function and though I have never used a dedicated SSD drive, my boot times and load times of most everything I do have dramatically increased.
I have this and a SanDisk Read圜ache in another computer and I am much happier with the performance of of this card (and you can't beat the price!) The ready cache is software driven and the software is kinda buggy, the SSD caching for Hyperduo mode is at a hardware level and the performance definitely reflects that. Performance with the marvell controller in Hyperduo mode is great.