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How to increase write performance on ReadyNAS
You may notice that ReadyNAS may seem a bit slow on writes using the default configuration. There is a way to increase that write performance significantly.
First, you will need a Uninterruptable Power Supply (UPS) with a USB connection. It doesn't have to be a large one, just big enough to protect the data in case of the power failure. A 250VA unit will be more than adaquate. Plug the ReadyNAS in to the power plug in on the UPS, making sure you plug in to the protected outlet. Next you need to connect the USB connection from the UPS to USB connector on ReadyNAS. Now turn it on.
Once the UPS is connected, ReadyNAS will automatically turn on the Write Cache option on drives. For further increase of writes, turn off the full journaling option. You can do that by clicking on the System button. If you don't see the System button, make sure you click on the Advanced Control button first. Then click on the Performance tab on the top. Then check the second option, Disable full data journalling for RAID 5 volumes, and click apply.
You should now see a large improvement on write performance of ReadyNAS.
First, you will need a Uninterruptable Power Supply (UPS) with a USB connection. It doesn't have to be a large one, just big enough to protect the data in case of the power failure. A 250VA unit will be more than adaquate. Plug the ReadyNAS in to the power plug in on the UPS, making sure you plug in to the protected outlet. Next you need to connect the USB connection from the UPS to USB connector on ReadyNAS. Now turn it on.
Once the UPS is connected, ReadyNAS will automatically turn on the Write Cache option on drives. For further increase of writes, turn off the full journaling option. You can do that by clicking on the System button. If you don't see the System button, make sure you click on the Advanced Control button first. Then click on the Performance tab on the top. Then check the second option, Disable full data journalling for RAID 5 volumes, and click apply.
You should now see a large improvement on write performance of ReadyNAS.
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- Shall I conclude I have a defective unit then? I've got write caching enabled, directly connected and the computer senses a gigabit network connection. Still the same lousy write speeds. Does anyone else use an X6 and get decent write speed?
JReble wrote: Shall I conclude I have a defective unit then? I've got write caching enabled, directly connected and the computer senses a gigabit network connection. Still the same lousy write speeds. Does anyone else use an X6 and get decent write speed?
Please wait for the next beta update. There will be a separate performance option to boost the write speed. ETA hopefully by tomorrow as we're working out some last kinks.- Cool Beans....thanks.
- When it's available....where will the new beta be found for download? I was having trouble locating download links to any beta releases.
JReble wrote: When it's available....where will the new beta be found for download? I was having trouble locating download links to any beta releases.
http://www.infrant.com/forum/viewforum.php?f=17- Updated to the beta and IO meter is now showing 10.8 MBps. That's better than I was getting. Anybody have any tips for increasing that further? We're using the NAS mostly for storage of large uncompressed NLE media files. While we never edit via the NAS storage, it is best to transfer these files at least as fast as they play. Typically 1GB = 1 minute of video play time. Read time seems more than adequate to play right from the NAS, but even at 10.8 MBps, write speed is a little slower than actual time, but it's certainly usable.
I could try to go with Jumbo frames and that may put us over the top. Any suggestions for a switch that would support it? I don't believe my Netgear gigabit ethernet switches support it. JReble wrote: Updated to the beta and IO meter is now showing 10.8 MBps. That's better than I was getting. Anybody have any tips for increasing that further? We're using the NAS mostly for storage of large uncompressed NLE media files. While we never edit via the NAS storage, it is best to transfer these files at least as fast as they play. Typically 1GB = 1 minute of video play time. Read time seems more than adequate to play right from the NAS, but even at 10.8 MBps, write speed is a little slower than actual time, but it's certainly usable.
I could try to go with Jumbo frames and that may put us over the top. Any suggestions for a switch that would support it? I don't believe my Netgear gigabit ethernet switches support it.
I would recommend one of the SMC switches in the device compatibility list. The 8505T has been a proven performer. The SMCGS5 and SMCGS8 are new and lower cost, but their performance with IOMeter in sequential access has been indistinguishable with the 8505T. We've seen they can give one or two MB/sec better than other switches in the same price category, and they also supports jumbo frames up to 9K.No, you can turn on write caching without a USB UPS connected.
Thanks for noting this but can you please provide more information about how this can be done? We have our Infrant on a UPS but we do not have a USB connection. I've searched the admin interface without success.
Regards,
KAMkmcgrail wrote: No, you can turn on write caching without a USB UPS connected.
Thanks for noting this but can you please provide more information about how this can be done? We have our Infrant on a UPS but we do not have a USB connection. I've searched the admin interface without success.
Regards,
KAM
The USB cable will allow monitoring of the UPS status so the ReadyNAS can shutdown gracefully on batter low. You'll need to use a UPS with a USB connection, and you'll need to use a UPS from our compatibility list -- see http://www.readynas.com/?page_id=76yoh-dah wrote: I would recommend one of the SMC switches in the device compatibility list. The 8505T has been a proven performer. The SMCGS5 and SMCGS8 are new and lower cost, but their performance with IOMeter in sequential access has been indistinguishable with the 8505T. We've seen they can give one or two MB/sec better than other switches in the same price category, and they also supports jumbo frames up to 9K.
Any recommendations for switches in the 24/48 port category with jumbo frames?
We *were* using a Netgear ProSafe GS748TNA, until it's firmware (apparently) caused it to die :shock: :roll: , and we have to now RMA it back to USA... :(
(Edited to Add: I do not see our unit listed in the Hardware Compatibility List, but possibly you want to update your list and also add the No. 3/4 exceptions for this one?? It *is* a Netgear product, btw! ;) )
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