miogpsrocks Posted May 8, 2017 Share Posted May 8, 2017 How to you add massive amounts of USB drives to the Array? Is your limit the number of USB ports your motherboard has or can you buy like USB Hubs or expansion cards for USB? Thanks. Quote Link to comment
Fireball3 Posted May 8, 2017 Share Posted May 8, 2017 (edited) Why would you add a massive number of USB drives? Afaik, you cannot add USB drives to the protected array! You can plug them and access/manage the content via the Unassigned Devices plugin. e.g. copy content from/to the array Edit: The plugin should be available through the CA repository also. Edited May 8, 2017 by Fireball3 1 Quote Link to comment
bman Posted May 8, 2017 Share Posted May 8, 2017 Shuck the drives from their shells and add them to your server as internal drives. Or if you mean transferring the data, do it one drive at a time. USB is a shared bus, so any time you transfer files from more than one device simultaneously, all transfers slow down. Quote Link to comment
Fireball3 Posted May 8, 2017 Share Posted May 8, 2017 3 minutes ago, bman said: Shuck the drives from their shells and add them to your server as internal drives. Take care! Some USB controllers split the drive internally into smaller chunks. The controller will report it as one drive, but if you connect the drive via SATA it will show up unpartitioned! I've seen WD external drives do this! Quote Link to comment
bman Posted May 8, 2017 Share Posted May 8, 2017 Eww, haven't noticed that before (but I stay away from USB HDDs usually as flash disks are much handier). Good tip! Quote Link to comment
JorgeB Posted May 8, 2017 Share Posted May 8, 2017 6 hours ago, Fireball3 said: Afaik, you cannot add USB drives to the protected array! You can, doesn't mean you should add more than 1 or 2, since like bman already mentioned it's a shared bus. Quote Link to comment
ken-ji Posted May 8, 2017 Share Posted May 8, 2017 9 hours ago, johnnie.black said: You can, doesn't mean you should add more than 1 or 2, since like bman already mentioned it's a shared bus. Just wondering, Is it still a shared bus if you have multiple USB controllers, say, one per port group? I realize there is a CPU bottleneck with USB storage... Quote Link to comment
BRiT Posted May 8, 2017 Share Posted May 8, 2017 Depends on how the multiple USB controllers are connected to the motherboard. Quote Link to comment
BRiT Posted May 9, 2017 Share Posted May 9, 2017 11 hours ago, Fireball3 said: Take care! Some USB controllers split the drive internally into smaller chunks. The controller will report it as one drive, but if you connect the drive via SATA it will show up unpartitioned! I've seen WD external drives do this! The external Seagate Archive controllers do NOT do this. Preclearing the 8TB Seagate Archival drive in it's external enclosure and then moving it to internal SATA kept the preclear signature intact. Quote Link to comment
bman Posted May 17, 2017 Share Posted May 17, 2017 On 2017-05-08 at 7:39 PM, ken-ji said: Just wondering, Is it still a shared bus if you have multiple USB controllers, say, one per port group? I realize there is a CPU bottleneck with USB storage... You can add more USB adapters too, until you run out of slots or PCIe lanes. IMHO it's all a bit fidgety and I would just pop them into some 5-in-3 hot swap bays and attach with SATA/SAS and be done with the USB translation in the middle. Quote Link to comment
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