I have a Pro 6, I create volume with 5 disks (3TB each). After sync completed, I added 6th disk as dual redundancy.It is very slow to restrip after 6th disk is added. Is this normal? It will take more than 10 day!!!!!!Configuration: RAID Level X-RAID2, 6 disks (with dual redundancy) Status: Restriping 1% complete, Time to finish 276 hr 8 min, Speed 2891 KB/sec RAID Disks: Ch 1 : Seagate ST33000651AS [2794 GB] 2790 GB allocated Ch 2 : Seagate ST33000651AS [2794 GB] 2790 GB allocated Ch 3 : Seagate ST33000651AS [2794 GB] 2790 GB allocated Ch 4 : Seagate ST33000651AS [2794 GB] 2790 GB allocated Ch 5 : Seagate ST33000651AS [2794 GB] 2790 GB allocated Ch 6 : Seagate ST3000DM001-9YN166 [2794 GB]

Restriping can take a long time particularly when migrating from single to dual-redundancy.What services do you have enabled? Any add-ons installed. Disabling unneeded services should help speed up the syncing a bit. If a service is using a lot of CPU that can really slow down resyncing big time. Recently a resync was crawling at 1MB/sec on my Ultra 6 (has a much slower CPU than your Pro 6). After disabling a service that was hogging CPU resources the resync sped up to 30 something MB/s

I turned of the following services:Bonjour serviceUPnPReadyDLNAFile Protocol:AFPHTTPRsyncStill very slow:Time to finish 256 hr 57 min, Speed 3103 KB/sec

No add-ons. I rebuild the volume.

Any data on the unit yet?If not, you may wish to do a factory default (wipes all data, settings, everything), open RAIDar (http://kb.netgear.com/app/answers/detail/a_id/20684/), click Setup and choose X-RAID2, tick the dual-redundancy option and confirm your choice. This should be a lot quicker.

SLOW RAID Level X-RAID2, 6 disks (with dual redundancy)

21 Replies

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mdgm-ntgr
NETGEAR Employee Retired
Nov 10, 2012
Personally I use 802.3ad LACP (requires a switch that supports that and is configured appropriately). I haven't tried the other options.
cmchoi
Aspirant
Nov 10, 2012
I have a Netgear GS108T, do you have steps to config it to use 802.3ad LACP?
mdgm-ntgr
NETGEAR Employee Retired
Nov 10, 2012
The v1 or the v2?
cmchoi
Aspirant
Nov 10, 2012
GS108Tv2 with 5.0.5.4
mdgm-ntgr
NETGEAR Employee Retired
Nov 10, 2012
Found my GS108Tv2. Now I'll update the firmware on it.
cmchoi
Aspirant
Nov 10, 2012
Thanks. When using "round robin", I get a huge number "Transmit Packet Errors".
The error is write to NAS, but I get over 110MB/s
When read from NAS, there is no "Transmit Packet Errors".
I have jumbo frame enable on NAS.
On switch, I have 9216 for both NIC to NAS.
mdgm-ntgr
NETGEAR Employee Retired
Nov 10, 2012
What about if you have Jumbo Frames disabled?
cmchoi
Aspirant
Nov 10, 2012
Then the speed to NAS is slow around 25 to 35 MB/s. This defeats NIC teaming.
mdgm-ntgr
NETGEAR Employee Retired
Nov 10, 2012
cmchoi wrote:
Then the speed to NAS is slow around 25 to 35 MB/s. This defeats NIC teaming.

You should normally be getting quicker than that without Jumbo Frames using the Pro 6. However the slower performance would be due to the resync. Best to wait for that to complete and then do network performance testing.
mdgm-ntgr
NETGEAR Employee Retired
Nov 10, 2012
To use LACP you'd open the web admin interface for the switch and go to Switching > LAG > Basic > LAG Membership and add the ports on the switch your NAS is connected to to a LAG.

Then under Switching > LAG > Basic > LAG configuration you'd make sure that the LAG is enabled. The LAG type should be set to LACP (I think).

You'd also need to configure the NAS to use LACP (note you will need an ethernet cable connected to each port to see the teaming options).

Not sure about the order to do all these things in but it shouldn't be hard to figure out.

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SLOW RAID Level X-RAID2, 6 disks (with dual redundancy)

21 Replies

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