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Forum Discussion
2.5" HDD ?
Hello, It looks like I cannot search in the forum with 2.5" (it change my search in '2 5' instead of '2.5"'). Did anyone used 2.5" HDD in readynas ? if yes, could you share which readynas and w...
Hi, all
I used HGST HTS541010A9E680 1TB with Ultra 2 (X-Raid2 but single drive) for a short period. No trouble. Also, I have been using Seagate ST9320320AS 320GB x2 with Duo (X-Raid) and HGST HTS545050B9A300 500GB x2 with Ultra 2 (X-Raid2) for around 2 years without any serious trouble. Don't ask about the HCL and guarantee.
I tried Intel X25-M G1 with Ultra 2 (X-Raid2 but single drive) and it worked fine. Its SMART could be seen from FrontView (Pic1, Pic2). The shown temperature was 1C/33F while in RAIDar Protocol, it was -1C/31F. Actually, this SSD does not report temperature in SMART and so this temperature should be dummy. The problem was that FrontView failed to show correct values of two important SMART attributes for this SSD, "Available Reserved Space" and "Media Wearout Indicator". See the differences of these attributes of the same SSD by utilities on PC (Pic3, Pic4, Pic5). It makes SMART from FrontView almost useless.
As for TRIM, in my opinion, even after certain period that a SSD will not have been trimed, the SSD will still keep enough speed for NAS usage. As you know, the response speed of NAS is already saturated using current HDD which is relatively much slower than SSD. Of course it depends on the SSD though.
doubleplouc wrote: I focus on 1TB but any feedback is interesting.
I used HGST HTS541010A9E680 1TB with Ultra 2 (X-Raid2 but single drive) for a short period. No trouble. Also, I have been using Seagate ST9320320AS 320GB x2 with Duo (X-Raid) and HGST HTS545050B9A300 500GB x2 with Ultra 2 (X-Raid2) for around 2 years without any serious trouble. Don't ask about the HCL and guarantee.
StephenB wrote: I haven't tried it, so I guess I don't know how it would treat a 0 disk temp. I do know that one person posted success when installing SSDs into an ultra using a disk carrier /snip/ so of course we don't know how it worked out longer term. I think TRIM is the obvious issue, though if I understand it correctly it would hurt write performance more than read performance.
I tried Intel X25-M G1 with Ultra 2 (X-Raid2 but single drive) and it worked fine. Its SMART could be seen from FrontView (Pic1, Pic2). The shown temperature was 1C/33F while in RAIDar Protocol, it was -1C/31F. Actually, this SSD does not report temperature in SMART and so this temperature should be dummy. The problem was that FrontView failed to show correct values of two important SMART attributes for this SSD, "Available Reserved Space" and "Media Wearout Indicator". See the differences of these attributes of the same SSD by utilities on PC (Pic3, Pic4, Pic5). It makes SMART from FrontView almost useless.
As for TRIM, in my opinion, even after certain period that a SSD will not have been trimed, the SSD will still keep enough speed for NAS usage. As you know, the response speed of NAS is already saturated using current HDD which is relatively much slower than SSD. Of course it depends on the SSD though.
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