July 25, 20196 yr Question I just picked up some sas 8tb drives due to price. More specific HGST Ultrastar He8 HUH728080AL4200 (0F23651) 8TB 7200 RPM 128MB Cache SAS 12Gb/s 3.5" Helium Platform Enterprise Hard Drive. Unraid recognized it no problem. Im only trying one out. Due to it being a big drive I have to use it as parity. Its hooked up to an LSI 8i. Now the issue my parity builds (used) to range in the 90-100s. Now After adding that drive its almost exactly half 48ish. I deleted all my older drives the (2TBs ones) no change. So two questions. First is this due to it being a SAS drive? I thought there 12gb shouldnt that be faster? Second could this be due to a huge range in harddrive size maybe? one 8tb sas (4) 3tb seagates? Or maybe cause it's a 4k? And all the others arent? I know sometimes it can range so Ill let it run a few hrs tomorrow when im at work. Edited July 27, 20196 yr by Mbur371189
July 26, 20196 yr Community Expert 6 hours ago, Mbur371189 said: First is this due to it being a SAS drive? No, but it's more likely to have write cache disable, diagnostics would show.
July 27, 20196 yr Author you sir are correct! fixed my issue just had to know what term to search for on the forum.
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