Brian

Synology DS1512+ NAS Review Discussion

10 posts in this topic

Hi Brian,

would it not be better to change the values

8K Sequential

100% Read, 100% Write

100% 8K

128K Sequential

100% Read, 100% Write

100% 128K

4K Random

100% Read, 100% Write

100% 4K

to 50 % read / 50% write ?

Also I wanted to ask did you get the chance to test larger Jumbo frames with MTU>1500 ?

I have tried that with MTU 4000 and got miserable stability over iSCSI.

Edited by Stoyan Varlyakov

Share this post


Link to post
Share on other sites

Hi Brian,

would it not be better to change the values

8K Sequential

100% Read, 100% Write

100% 8K

128K Sequential

100% Read, 100% Write

100% 128K

4K Random

100% Read, 100% Write

100% 4K

to 50 % read / 50% write ?

Also I wanted to ask did you get the chance to test larger Jumbo frames with MTU>1500 ?

I have tried that with MTU 4000 and got miserable stability over iSCSI.

With those workloads, it is tested with 100% read or write activity, whereas the other workloads it is a ratio inside the same test.

Also, all of these tests were performed with Jumbo frames enabled on the NIC and NAS (9000).

Share this post


Link to post
Share on other sites

With those workloads, it is tested with 100% read or write activity, whereas the other workloads it is a ratio inside the same test.

Also, all of these tests were performed with Jumbo frames enabled on the NIC and NAS (9000).

Great info!

About the access patterns - are those IOMeter tests?

If yes, how excatly do you perform 4 thread / 4 QD tests?

4 workers with 4 outstanding IOs each?

About the 50 Gb LBA - this means you configured the IO Meter to use 100 000 000 000 blocks?

If yes - did you time limit the test?

I hope the answer to the first question is not no :)

Cheers,

SV

Edited by Stoyan Varlyakov

Share this post


Link to post
Share on other sites

Review of Synology's SMB targeted 5-bay NAS unit.

Synology DS1512+ NAS Review

Not quite sure what you meant by Expansion shelves are their own volumes, not additive.

The expansion box connects to the ESATA port and you can either create a new volume or expand the current volume.

Share this post


Link to post
Share on other sites

Not quite sure what you meant by Expansion shelves are their own volumes, not additive.

The expansion box connects to the ESATA port and you can either create a new volume or expand the current volume.

Agreed!

The DS1512+ is compatible with the following expansion units which allow for volume expansion across the physical units:

DX513

DX213

DX510

Manufacturer Spec (emphasis added):

Synology expansion units are designed for pairing with specific expansion-ready DiskStation/RackStation models to enlarge the internal volume, or form an independent volume for backup or additional storage

Share this post


Link to post
Share on other sites

Review of Synology's SMB targeted 5-bay NAS unit.

Synology DS1512+ NAS Review

Good review overall, however, is there a reason why power consumption graphs were completely left out? I went through a number of NAS drives reviewed over the year in this category and each one shows power consumption. This info was conspicuously missing here.

Thanks

belly

Share this post


Link to post
Share on other sites

Good catch. We're completely revamping our testing protocol and will be including it in new reviews soon. We'll go back and update some of these key reviews.

Share this post


Link to post
Share on other sites

You could move the drives into another box or actually load the drives into a generic server running your favorite flavor of Linux. Synology uses standard mdadm RAID and is pretty easy to recover from.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now