On 9/14/22 11:40, gene heskett wrote:
Greetings all;
Does anyone have experience with this controller card?
https://www.newegg.com/p/14G-04YB-00003?Item=9SIB2XHHUE3880
Specifically, whats my chances of moving an existing software raid10's 4
Samsung 1T's to it,
and then attaching 4 more 2T drives to it too, to create a separate 4T
raid-10 for amanda?
Without any data loss if possible?
Thanks all.
Cheers, Gene Heskett.
Backup the contents of the 4 @ 1 TB RAID before making any changes; just
in case.
What are the makes and model numbers of your computer, motherboard,
chassis(es), drive rack(s), and disk drives?
Please confirm that you are using Linux md for software RAID.
What other expansion cards will be connected to the computer at the same
time as the new HBA?
What other drives will be connected to the new HBA?
AIUI Linux md(4)/ mdadm(8) marks block devices when they are added into
an array, and is able to find them if and when the device node changes.
So, shutting down, moving the 4 @ 1 TB drives to the new HBA, and
booting should "just work".
As others have mentioned, a PCIe 2.0 1x connection (500 MB/s) may become
a bottleneck for intensive RAID operations, such as copying the 4 @ 1 TB
RAID10 to the 4 @ 2 TB RAID10, scrubbing a RAID, replacing/ resilvering
RAID drives, etc.. I expect Amanda will be limited by HDD seek time
and/or Gigabit Ethernet, not by PCIe 2.0 1x bandwidth.
David
