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RN102 Very Slow Speeds on One HDD
Hi,
I've been getting some really slow speeds on only one of my Barracuda ST2000DM001 Hard drives. I have a matching pair of them in my NAS. Drive1 Runs perfectly fine and can up to 75MB/s read and around 50MB/s write. I'm connected using a netgear R6300 via a Gigabit connection.
The second drive on the other hand is terribly slow. I get a max of about 2MB/s read with Pausing as well. And about 10MB/s write, which is very odd. I dont have another HDD to test, so was wondering if it is most likely the HDD itself or some settings in the NAS. Both HDDs are new. If it is the HDD I will claim warranty on them. It has been running like this for over a month now. So I generally use Drive 1. Less than 100GB is used on the slow second drive.
Forgot to add. That I noticed these slow speeds after the 6.1.4 update, and it is a RN102 (2bay) Readynas
Any suggestions would be great.
Thanks!
I've been getting some really slow speeds on only one of my Barracuda ST2000DM001 Hard drives. I have a matching pair of them in my NAS. Drive1 Runs perfectly fine and can up to 75MB/s read and around 50MB/s write. I'm connected using a netgear R6300 via a Gigabit connection.
The second drive on the other hand is terribly slow. I get a max of about 2MB/s read with Pausing as well. And about 10MB/s write, which is very odd. I dont have another HDD to test, so was wondering if it is most likely the HDD itself or some settings in the NAS. Both HDDs are new. If it is the HDD I will claim warranty on them. It has been running like this for over a month now. So I generally use Drive 1. Less than 100GB is used on the slow second drive.
Forgot to add. That I noticed these slow speeds after the 6.1.4 update, and it is a RN102 (2bay) Readynas
Any suggestions would be great.
Thanks!
5 Replies
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- What do the SMART stats look like?
- How do you check the SMART stats? All the errors are 0 under Drive status under the performance tab.
- Download the logs to your PC and look at disk_info.log
- Had a look at this file and it all seems fine. This is the data output from the file. Accessing that second drive is still very slow. And I just can't work it out. Thanks for your replies by the way. Have just found some time to try things out. I've tried downgrading to previous firmware but it didn't seem to make a difference.
Device: sda
Controller: 0
Channel: 0
Model: ST2000DM001-1CH164
Serial: W1E1N58K
Firmware: CC43
Class: SATA
RPM: 7200
Sectors: 3907029168
Pool: Drive1
PoolType: RAID JBOD
PoolState: 2
PoolHostId: e341ff9
Health Data:
ATA Error Count: 0
Reallocated Sectors: 0
Reallocation Events: 0
Spin Retry Count: 0
End-to-End Errors: 0
Command Timeouts: 0
Current Pending Sector Count: 0
Uncorrectable Sector Count: 0
Temperature: 37
Start/Stop Count: 79
Power-On Hours: 7114
Power Cycle Count: 62
Load Cycle Count: 79
Device: sdb
Controller: 0
Channel: 1
Model: ST2000DM001-1E6164
Serial: Z1E28B8S
Firmware: CC42
Class: SATA
RPM: 7200
Sectors: 3907029168
Pool: Drive2
PoolType: RAID JBOD
PoolState: 2
PoolHostId: e341ff9
Health Data:
ATA Error Count: 0
Reallocated Sectors: 0
Reallocation Events: 0
Spin Retry Count: 0
End-to-End Errors: 0
Command Timeouts: 0
Current Pending Sector Count: 0
Uncorrectable Sector Count: 0
Temperature: 37
Start/Stop Count: 59
Power-On Hours: 5000
Power Cycle Count: 59
Load Cycle Count: 59 - I don't see any issues with the SMART stats - though I am noticing that the second drive is running cc42 firmware, while the first is running cc43. They aren't precisely identical btw, the full model numbers are not the same.
Maybe see if there is more recent firmware here: https://apps1.seagate.com/downloads/request.html
On drive 2 - did you check snapshots? The drive could be more full than you think. Since the volume is nearly empty, you could also try destroying it and creating a new one.
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