Re: ReadyNAS 214 very slow to write, even locally from USB. (20MB/s)

Doable3191 · ‎2024-03-07

I have an issue with my ReadyNAS where it is very slow to write to.

I've tried over gigabit ethernet and now, trying to copy files locally from a USB to the drive but it caps out around 20MB/s.

I have a 4 drive raid 0 array (FLEX-raid)

The disk check comes back ok. I've defragged it. That did'nt help. I tried balancing it too. That didn't help either.

What further troubleshooting steps should I take?

Doable3191 · ‎2024-03-07

I have printed my partition table in case that helps...? I read that to be 4k aligned the start *and* end sectors had to be divisble by 8, but the end sector isn't. Not sure if that's correct in this instance. I'm a pretty confident commandline user but I don't know much about disk partitioning which is why I'm here.

root@red-queen:~# fdisk -l

Disk /dev/mtdblock0: 1.8 MiB, 1835008 bytes, 3584 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mtdblock1: 256 KiB, 262144 bytes, 512 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mtdblock2: 6 MiB, 6291456 bytes, 12288 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mtdblock3: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mtdblock4: 100 MiB, 104857600 bytes, 204800 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mtdblock5: 128 KiB, 131072 bytes, 256 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mtdblock6: 16 MiB, 16777216 bytes, 32768 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/sda: 3.7 TiB, 4000787030016 bytes, 7814037168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 5234781B-725A-4CC3-852F-063A26950DA8

Device       Start        End    Sectors  Size Type
/dev/sda1       64    8388671    8388608    4G Linux RAID
/dev/sda2  8388672    9437247    1048576  512M Linux RAID
/dev/sda3  9437248 7814037119 7804599872  3.6T Linux RAID

Disk /dev/sdb: 3.7 TiB, 4000787030016 bytes, 7814037168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 38E77CF2-A96F-4DCD-8964-5A5C75649AE4

Device       Start        End    Sectors  Size Type
/dev/sdb1       64    8388671    8388608    4G Linux RAID
/dev/sdb2  8388672    9437247    1048576  512M Linux RAID
/dev/sdb3  9437248 7814037119 7804599872  3.6T Linux RAID

Disk /dev/sdc: 5.5 TiB, 6001175126016 bytes, 11721045168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: E2073793-2307-48A1-92C0-483EE50EE1C1

Device       Start        End    Sectors  Size Type
/dev/sdc1       64    8388671    8388608    4G Linux RAID
/dev/sdc2  8388672    9437247    1048576  512M Linux RAID
/dev/sdc3  9437248 7814037119 7804599872  3.6T Linux RAID

Disk /dev/sdd: 5.5 TiB, 6001175126016 bytes, 11721045168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 681B3DF7-48A4-4056-97A1-C4FEEEAA309A

Device       Start        End    Sectors  Size Type
/dev/sdd1       64    8388671    8388608    4G Linux RAID
/dev/sdd2  8388672    9437247    1048576  512M Linux RAID
/dev/sdd3  9437248 7814037119 7804599872  3.6T Linux RAID

Disk /dev/md0: 4 GiB, 4290772992 bytes, 8380416 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/md1: 1020 MiB, 1069547520 bytes, 2088960 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 524288 bytes / 1048576 bytes
Disk /dev/md127: 14.5 TiB, 15983279341568 bytes, 31217342464 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 65536 bytes / 262144 bytes
Disk /dev/sde: 57.8 GiB, 61991813632 bytes, 121077761 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xb5eac6c6

Device     Boot     Start       End   Sectors  Size Id Type
/dev/sde1  *         2048 121012223 121010176 57.7G  7 HPFS/NTFS/exFAT
/dev/sde2       121012224 121077759     65536   32M ef EFI (FAT-12/16/32)

Disk /dev/sdf: 14.5 GiB, 15581839360 bytes, 30433280 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0034be61

Device     Boot Start      End  Sectors  Size Id Type
/dev/sdf1  *       64 30433279 30433216 14.5G  c W95 FAT32 (LBA)

StephenB · ‎2024-03-07

What disks are you using in the NAS? (and what RAID mode)?

Doable3191 · ‎2024-03-07

^^ It's raid 0 FlexRAID - or is that not what you mean?

The first two drives are ST4000DM004-2CV104

https://hdd.userbenchmark.com/SpeedTest/243570/ST4000DM004-2CV104

The second are ST60000DM003-2CY186

https://hdd.userbenchmark.com/Seagate-Barracuda-Pro-6TB-2016/Rating/3900

root@red-queen:~# df -l
Filesystem 1K-blocks Used Available Use% Mounted on
udev 10240 4 10236 1% /dev
/dev/md0 3862208 1059276 2577040 30% /
tmpfs 1032992 0 1032992 0% /dev/shm
tmpfs 1032992 440 1032552 1% /run
tmpfs 516500 1060 515440 1% /run/lock
tmpfs 1032992 0 1032992 0% /sys/fs/cgroup
/dev/md127 15608671232 13948154716 1658212292 90% /data
/dev/md127 15608671232 13948154716 1658212292 90% /home
/dev/md127 15608671232 13948154716 1658212292 90% /apps
/dev/md127 15608671232 13948154716 1658212292 90% /var/ftp/drop
/dev/md127 15608671232 13948154716 1658212292 90% /run/nfs4/data/backups
/dev/md127 15608671232 13948154716 1658212292 90% /run/nfs4/data/Media
/dev/sde2 32498 12291 20207 38% /media/usb
/dev/sdf1 15200224 3975920 11224304 27% /media/USB_FLASH_4
root@red-queen:~# clear
root@red-queen:~# fdisk -l

Disk /dev/mtdblock0: 1.8 MiB, 1835008 bytes, 3584 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mtdblock1: 256 KiB, 262144 bytes, 512 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mtdblock2: 6 MiB, 6291456 bytes, 12288 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mtdblock3: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mtdblock4: 100 MiB, 104857600 bytes, 204800 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mtdblock5: 128 KiB, 131072 bytes, 256 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mtdblock6: 16 MiB, 16777216 bytes, 32768 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/sda: 3.7 TiB, 4000787030016 bytes, 7814037168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 5234781B-725A-4CC3-852F-063A26950DA8

Device Start End Sectors Size Type
/dev/sda1 64 8388671 8388608 4G Linux RAID
/dev/sda2 8388672 9437247 1048576 512M Linux RAID
/dev/sda3 9437248 7814037119 7804599872 3.6T Linux RAID

Disk /dev/sdb: 3.7 TiB, 4000787030016 bytes, 7814037168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 38E77CF2-A96F-4DCD-8964-5A5C75649AE4

Device Start End Sectors Size Type
/dev/sdb1 64 8388671 8388608 4G Linux RAID
/dev/sdb2 8388672 9437247 1048576 512M Linux RAID
/dev/sdb3 9437248 7814037119 7804599872 3.6T Linux RAID

Disk /dev/sdc: 5.5 TiB, 6001175126016 bytes, 11721045168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: E2073793-2307-48A1-92C0-483EE50EE1C1

Device Start End Sectors Size Type
/dev/sdc1 64 8388671 8388608 4G Linux RAID
/dev/sdc2 8388672 9437247 1048576 512M Linux RAID
/dev/sdc3 9437248 7814037119 7804599872 3.6T Linux RAID

Disk /dev/sdd: 5.5 TiB, 6001175126016 bytes, 11721045168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 681B3DF7-48A4-4056-97A1-C4FEEEAA309A

Device Start End Sectors Size Type
/dev/sdd1 64 8388671 8388608 4G Linux RAID
/dev/sdd2 8388672 9437247 1048576 512M Linux RAID
/dev/sdd3 9437248 7814037119 7804599872 3.6T Linux RAID

Disk /dev/md0: 4 GiB, 4290772992 bytes, 8380416 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/md1: 1020 MiB, 1069547520 bytes, 2088960 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 524288 bytes / 1048576 bytes
Disk /dev/md127: 14.5 TiB, 15983279341568 bytes, 31217342464 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 65536 bytes / 262144 bytes
Disk /dev/sde: 57.8 GiB, 61991813632 bytes, 121077761 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xb5eac6c6

Device Boot Start End Sectors Size Id Type
/dev/sde1 * 2048 121012223 121010176 57.7G 7 HPFS/NTFS/exFAT
/dev/sde2 121012224 121077759 65536 32M ef EFI (FAT-12/16/32)

Disk /dev/sdf: 14.5 GiB, 15581839360 bytes, 30433280 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0034be61

Device Boot Start End Sectors Size Id Type
/dev/sdf1 * 64 30433279 30433216 14.5G c W95 FAT32 (LBA)

Doable3191 · ‎2024-03-07

Seems I can't reply...

StephenB · ‎2024-03-07

@Doable3191 wrote:

The first two drives are ST4000DM004-2CV104

The second are ST60000DM003-2CY186

Both models are SMR drives (Shingled Magnetic Recording).

https://www.seagate.com/www-content/datasheets/pdfs/3-5-barracudaDS1900-14-2007US-en_CA.pdf

Despite the benchmark scores, not a great choice for ReadyNAS. Sustained write speeds can become very slow with SMR.

If you have another drive available to test with, you could try powering down, removing the current drives, and then doing a fresh install with the test disk. Then see what speeds you get..

StephenB · ‎2024-03-07

@Doable3191 wrote:

Seems I can't reply...

The automated spam filter trapped your replies. I released them for you.