Re: [gentoo-user] Sata hard drive speed question
Neil Bothwick wrote: > On Thu, 13 Dec 2018 02:54:07 -0600, Dale wrote: > >> I reseated the cables but it's still taking a long time to do anything. >> Given my drive led is on, it's doing something. I'm just not sure how >> fast it is doing it. o_O > Have you tried running the smartctl selftests? > > I ran a short one and it said it was all good. When I try to run the long one, it keeps aborting. I'm not sure why it is doing that tho. I may just change the sata cable completely. Bad thing is, it is right next to the drive my OS is on so I want to shutdown to do that. Just in case the wrong one comes unplugged. SMART Self-test log structure revision number 1 Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error # 1 Extended offline Interrupted (host reset) 00% 559 - # 2 Extended offline Interrupted (host reset) 00% 556 - # 3 Short offline Completed without error 00% 543 - # 4 Short offline Completed without error 00% 528 - # 5 Extended offline Aborted by host 90% 527 - I think #4 and 5 were done before I got it. Dale :-) :-)
Re: [gentoo-user] Sata hard drive speed question
On Thu, 13 Dec 2018 02:54:07 -0600, Dale wrote: > I reseated the cables but it's still taking a long time to do anything. > Given my drive led is on, it's doing something. I'm just not sure how > fast it is doing it. o_O Have you tried running the smartctl selftests? -- Neil Bothwick WinErr 079: Mouse not found - A mouse driver has not been installed. Please click the left mouse button to continue. pgplUf2StWevh.pgp Description: OpenPGP digital signature
Re: [gentoo-user] Sata hard drive speed question
Neil Bothwick wrote: > On Wed, 12 Dec 2018 21:36:20 -0600, Dale wrote: > >> Googled to see how to find out if it is aligned correctly and found >> this. >> >> root@fireball / # cat /sys/block/sdb/queue/physical_block_size >> 4096 >> root@fireball / # >> >> I thought cgdisk did that automatically so I guess it did. > gdisk -l will tell you if it is. If the first partition starts at sector > 2048 you re OK on that. > > I remember seeing that so it did. I generally notice when it does that but I don't give it much thought. I think it is one of those things that if I didn't see it there, I'd know something wasn't right and I'd notice it and check into it. I reseated the cables but it's still taking a long time to do anything. Given my drive led is on, it's doing something. I'm just not sure how fast it is doing it. o_O Dale :-) :-)
Re: [gentoo-user] Sata hard drive speed question
On Wed, 12 Dec 2018 21:36:20 -0600, Dale wrote: > Googled to see how to find out if it is aligned correctly and found > this. > > root@fireball / # cat /sys/block/sdb/queue/physical_block_size > 4096 > root@fireball / # > > I thought cgdisk did that automatically so I guess it did. gdisk -l will tell you if it is. If the first partition starts at sector 2048 you re OK on that. -- Neil Bothwick Growing old is mandatory; growing up is optional!! pgpb8WLkOommf.pgp Description: OpenPGP digital signature
Re: [gentoo-user] Sata hard drive speed question
taii...@gmx.com wrote: > Here are some theories. > > * You gotta properly align the sectors for 4K advanced format > * USB doesn't have NCQ which really slows things down. > * Copying many small files is almost always slow since they are located > on various parts of the drive not in a contiguous block (again see NCQ) > * System is set to use IDE not AHCI thus no NCQ etc > * You are using a secondary SATA chip such as the terrible ones from > JMicron or what not instead of what is on your systems northbridge or a > quality PCI-e HBA. > > Googled to see how to find out if it is aligned correctly and found this. root@fireball / # cat /sys/block/sdb/queue/physical_block_size 4096 root@fireball / # I thought cgdisk did that automatically so I guess it did. Drive is currently connected to my motherboard's Sata port. If it was a bad/cheap controller, I'd think the other drives would also give slow speeds. They work fine. While I have a Sata PCI-e card installed, I'm not using it yet. It has a Marvel chipset which others say works fine. Once I get some more power cables in, I'll test it to see how it does. At this point tho, all drives are connected to the Gigabyte Sata ports. Sorry if that caused confusion. It seems we can eliminate some possible problems at least. I need more ideas to check on it seems. Still, I may dd the thing, at least the first bit of it anyway, and start again. I did repartition and format the drive after the move tho. Still, maybe dd-ing it for a fresh start will help. At this point, I don't need the data on it. I can redo whatever until I get it working correctly. Thanks for the ideas. Dale :-) :-)
Re: [gentoo-user] Sata hard drive speed question
Here are some theories. * You gotta properly align the sectors for 4K advanced format * USB doesn't have NCQ which really slows things down. * Copying many small files is almost always slow since they are located on various parts of the drive not in a contiguous block (again see NCQ) * System is set to use IDE not AHCI thus no NCQ etc * You are using a secondary SATA chip such as the terrible ones from JMicron or what not instead of what is on your systems northbridge or a quality PCI-e HBA.
[gentoo-user] Sata hard drive speed question
Howdy, I bought a 8TB hard drive. Seagate 8TB 5E8 Exos ST8000AS0003 is the exact model info. It seems to be slow. First, I had it hooked to a adapter to a USB port. I expected it to be a little slow but it gave me memories of the old dial-up days. When it shows KBs/second, it's getting slow for a sata drive. So, I moved it inside the case with a sata connection directly to the mobo. I unhooked my DVD burner for this. It's somewhat faster but still slow in my opinion. I found this for specs on a website. Max. Sustained Transfer Rate OD (MB/s) 190MB/s OK, can I get half that now? One quarter would be better even. This is a sample of what I get when using --progress with rsync while copying files from another drive to it, backup thing. 102,782,342 100% 4.68MB/s 0:00:20 (xfr#122, ir-chk=1135/1995) 65,330,688 100% 5.34MB/s 0:00:11 (xfr#123, ir-chk=1134/1995) 59,338,843 100% 2.04MB/s 0:00:27 (xfr#124, ir-chk=1133/1995) 64,996,691 100% 10.99MB/s 0:00:05 (xfr#125, ir-chk=1132/1995) 467,837,625 100% 5.42MB/s 0:01:22 (xfr#126, ir-chk=1131/1995) 39,236,581 100% 5.42MB/s 0:00:06 (xfr#127, ir-chk=1130/1995) 302,340,815 100% 3.95MB/s 0:01:12 (xfr#128, ir-chk=1129/1995) This is what I get from hdparm: root@fireball / # hdparm -Tt /dev/sdb /dev/sdb: Timing cached reads: 8222 MB in 2.00 seconds = 4114.05 MB/sec Timing buffered disk reads: 2 MB in 3.59 seconds = 570.26 kB/sec root@fireball / # First one looks reasonable but second one just plain sucks. Note the KB instead of a MB. I get this on a much older drive: root@fireball / # hdparm -Tt /dev/sda /dev/sda: Timing cached reads: 8664 MB in 2.00 seconds = 4335.98 MB/sec Timing buffered disk reads: 328 MB in 3.01 seconds = 108.82 MB/sec root@fireball / # And smartctrl gives me this on the new drive: SMART Self-test log structure revision number 1 Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error # 1 Extended offline Self-test routine in progress 90% 544 - # 2 Short offline Completed without error 00% 543 - # 3 Short offline Completed without error 00% 528 - I've ran those tests in the past and it not affect the copy speed. Still, it shows the drive is OK. I'm running the long one to be 100% sure. I was getting the same before I started the selftest tho. I created one large partition with gfdisk. It is formatted with ext4 file system. Most files are videos but some are other file types and smaller. Thing is, it seems slow no matter what size the file is. Large files just take longer naturally. This is what mount shows including options. /dev/sdb1 on /mnt/tmpdisk type ext4 (rw,relatime) I have a few other drives on this system. They work fine and perform fine. Heck, a 6TB drive in a external enclosure connected by USB does better than this. Can someone explain why this drive is so terribly slow? Did I do something wrong? Is there something special about a drive this large that I need to do? Thanks. Dale :-) :-)
