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Dell r720xd - single raid volume vs flash h710p?

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Hi Guys,

 

I've flashed the h710p mini in my server, I have an LACP connection to my two Ciscos, everything is ready to go, however, one of my brand new disks are DoA, super super frustrating. Anyway, what's more frustrating is the LED lights on the hot swap caddy's don't work when you flash the RAID card, which makes me wonder if it might be better just running single volumes per disk.

 

I've come from a time where I ran 2 ZFS RAID-Z2 arrays totalling 14 disks, starting on OpenSolaris, moving to CentOS, managing it all via CLI, creating my own startup scrips for docker, all that really annoying stuff. And I have realised, a) I don't need performance to store a bunch of really large video files, I'm not editing them and b) I would rather spend my time riding motorcycles than looking after this thing! I build server racks for a job, so the goal is to build this thing to be rock solid, run for as long as it can, and never look back, possibly upgrading to an R540 in a few years. And keep this as simple as possible, upgradable with more storage, I have 5 12Tb Seagate NAS disks to start with (one of them doesn't fire up.. yay).

 

So my question/concerns are...

 

Am I right to assume that, if I run UnRAID with JBOD, in the event of a failure (and the parity also fails), I will only lose what is on that failed disk, and any other computer, with any other SAS/SATA controller can read those disks? And... if I went down the route of leaving the Dell firmware on the RAID card, and setting up 1 volume per disk, I would need to replace the RAID card with another of the same to read the disk configuration, in order to be able to rescue data from the failed array?

 

If what I think is true, it's most likely safer to just go with the card flashed over to LSI.

 

Appreciate your feedback!

  • Community Expert
8 hours ago, joel_ezekiel said:

Am I right to assume that, if I run UnRAID with JBOD, in the event of a failure (and the parity also fails), I will only lose what is on that failed disk, and any other computer, with any other SAS/SATA controller can read those disks?

Yes if the controller is flashed to IT mode, most likely not if it's in RAID mode.

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