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Trying to squeeze some more storage in my MiniPC. I have questions about these. These use hardward RAID with selectable modes (Individual/JBOD/RAID1/RAID2).
If I use RAID 1 and one of the drives fails, will I know?
If a drive fails, and a slap in a new one, will it internally begin repairing RAID 1 again?
Can I use these as "individual" or JBOD and have 2 separate drives through the same connector, and use something like TrueNAS to software-RAID them?
IF JBOD, && Linux, THEN yes you can know, through SMARTTOOLS, or something like that..
However, I can't imagine how you'd get 2 separate PCIe
( presuming NVMe devices ..
.. no, this thing must be presuming SATA, NOT NVMe ..
even in SATA, there's no bifurcator for SATA, I don't think:
SAS has expanders, which can take a single SAS channel & attach something like 128 SAS devices onto it,
PCIe has some kind of equivalent, and there is a PCIe card which crams loads of NVMe's into it, out in the last year, but SATA??
Hmm... )
shrug
The equivalent of SAS expanders for SATA are called port multipliers, and the JMS562 chip in the picture can act as one (as well as becoming a sort of RAID controller).