Paul_Ber Posted December 16, 2020 Share Posted December 16, 2020 (edited) Does using a 10 year old Motherboard SATA ports affect the Preclear time? I have a spare PC because I cannot add more HD to unraid until I get my LSI card. So I thought I would preclear on this old PC. I can see it says something about a link of 3.0 Gbps, so isn't a 6.0 Gbps link. And max speed UDMA/133. The preclear does show average of 195 MB/s. Dec 17 14:59:34 Tower kernel: ata3: SATA max UDMA/133 abar m1024@0xfe02f000 port 0xfe02f100 irq 22 Dec 17 14:59:34 Tower kernel: ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300) Dec 17 14:59:34 Tower kernel: ata3.00: ATA-9: WDC WD80EFAX-68KNBN0, VGGR4P0G, 81.00A81, max UDMA/133 Edited December 17, 2020 by Paul_Ber Could delete previous post so wrote a shorter post with different questions Quote Link to comment
Decto Posted December 23, 2020 Share Posted December 23, 2020 SATA 2 is good for ~250 MB/s, the 195 MB/s is about right for a WD 8TB drive at the start of the pre-clear but it will slow down as it moves to the inner disk tracks. Quote Link to comment
Paul_Ber Posted December 23, 2020 Author Share Posted December 23, 2020 Just now, Decto said: SATA 2 is good for ~250 MB/s, the 195 MB/s is about right for a WD 8TB drive at the start of the pre-clear but it will slow down as it moves to the inner disk tracks. Thanks. I did 3 rounds of preclear on the 8TB and no errors. Now doing 3 rounds on a WD60EFRX CMR that was RMA'd to replace a WD60EFAX SMR that at time of purchase WD never said it was SMR. They sent me the new drive without a credit card, I only have to pay for shipping back. Quote Link to comment
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