Good Day,
Q.1 if i use Raid 0 (Spanning) JBOD mode, and one of the 4 drives fails the others will still be readable/accessible ?
Q.2 in Raid 0 (Spanning) JBOD mode, when one of the drives fails can i replace it without broken the JBOD mode ?
Q.3 Can i simply remove the faulty drive and do data recovery on it?
regards,
Mohammednt0
With RAID 0, if you loose any one drive, you loose everything. There is no redundancy and the chance of a catastrophic failure goes up in direct proportion to the number of drives in the array. For example, with 2 drives, you are twice as likely to have a catastrophic failure vs a single drive, with 3 drives, 3 times as likely, etc.
With RAID 0, data is striped across the disks. In other words, as more data is written to the volume, each drive will fill up equally along with the other disks. This can offer performance improvements over JBOD (Just a Bunch Of Disks) but does not offer any redundancy.
JBOD, on the other hand, does not write in stripes. Therefore, you may be more likely to be able to recover data from a JBOD volume if a disk fails, but again, there is no redundancy.
Whatever option you choose, I would always recommend putting in place a good backup strategy!
thank you for your reply,
the reason for why i opened this thread is that i'm trying to cover all scenarios,
◼ i have 2 Hardware RAID Storage, one is on site and the other is offsite, the first one is for daily use, and the second one i use it as backup
◼ the first RAID storage is 5-bay (More bays = more space) , in this raid storage 4-HDDs will be enough so i loaded the fifth HDD and i set it on RAID 5 to provide protection (fault tolerance)
◼ the second RAID storage is 4-bay, (less bays = less storage) i don't have enough bays, so since i don't have enough bays/space to use RAID 5 i'm forced to use RAID 0 or JBOD, i'm planing to use it as backup and keep it in another site
◼ finally in case something wrong happened to the JBOD Storage , i want to make sure that things remain simple and easy for me to recover data, from what i read RAID is much harder in data recovery.
So i do have a RAID 5 storage and i do have an offsite backup i just wanted to cover all scenarios and learn more
any advise is appreciated
thanks
I would not consider JBOD easier to recover! At the very least, everything on the failed disk will be gone - of that there is no doubt. More than likely, the rest of the data will also be unrecoverable.
This post says it pretty well:
When a JBOD storage pool fails : synology
Remember, the whole point of a backup is to have reliable means of recovery if your primary data source fails. Why put it at risk unless your data really is not that important to you.
thanks, you were very helpfulI would not consider JBOD easier to recover! At the very least, everything on the failed disk will be gone - of that there is no doubt. More than likely, the rest of the data will also be unrecoverable.
This post says it pretty well:
When a JBOD storage pool fails : synology
Remember, the whole point of a backup is to have reliable means of recovery if your primary data source fails. Why put it at risk unless your data really is not that important to you
Glad to be able to help!
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