Folks:
My sister has a 2015 iMac. Runs the lovely fusion. Well, the SSD appears to have failed. Rather than open it up and risk other issues, I thought about getting her back on her feet by using an external SSD running USB 3.0. This iMac obviously supports 3.0 and Thunderbolt 2.
Option 1: I considered just a WD Easystore 5TB portable drive. Then I started to consider that maybe such a drive wouldn't support throughput that 3.0 can take and I've heard such externals don't support TRIM.
So I am now considering Config 2:
Buying a Hannord (or equivalent) 2.5" Hard Drive Enclosure USB 3.0 to SATA III case. Most such cases says they support SSD & HDD (SATA III) up to 4TB. I would make sure it fully supports USAP too. Match a case with a Samsung 870 QVO Seriese 2.5" 1TB SATA III V-NAND. Both should let me enable TRIM support via UASP.
The question is, would this second option be much faster than the first? It will be more expensive; I just wonder if the performance would be noticeable. With TRIM support via UASP I believe it should have longer life. That's a plus. Just don't know if this will even make a dent in speed differences between the two.
BTW, in another form I read, "USB3 has brought a new protocol : UASP (USB Attached SCSI Protocol) for communication with external mass storage devices over USB. The old protocol BOT (Bulk Only Transport) does not support TRIM. UASP supporting TRIM and NCQ". Option 2 should give me UASP." That is what moved me to consider option 2.
Thoughts?
TKH
My sister has a 2015 iMac. Runs the lovely fusion. Well, the SSD appears to have failed. Rather than open it up and risk other issues, I thought about getting her back on her feet by using an external SSD running USB 3.0. This iMac obviously supports 3.0 and Thunderbolt 2.
Option 1: I considered just a WD Easystore 5TB portable drive. Then I started to consider that maybe such a drive wouldn't support throughput that 3.0 can take and I've heard such externals don't support TRIM.
So I am now considering Config 2:
Buying a Hannord (or equivalent) 2.5" Hard Drive Enclosure USB 3.0 to SATA III case. Most such cases says they support SSD & HDD (SATA III) up to 4TB. I would make sure it fully supports USAP too. Match a case with a Samsung 870 QVO Seriese 2.5" 1TB SATA III V-NAND. Both should let me enable TRIM support via UASP.
The question is, would this second option be much faster than the first? It will be more expensive; I just wonder if the performance would be noticeable. With TRIM support via UASP I believe it should have longer life. That's a plus. Just don't know if this will even make a dent in speed differences between the two.
BTW, in another form I read, "USB3 has brought a new protocol : UASP (USB Attached SCSI Protocol) for communication with external mass storage devices over USB. The old protocol BOT (Bulk Only Transport) does not support TRIM. UASP supporting TRIM and NCQ". Option 2 should give me UASP." That is what moved me to consider option 2.
Thoughts?
TKH
Last edited: