[Brian]

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

Synology DS1512+ NAS Review

[Stoyan Varlyakov]

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.

This post has been edited by Stoyan Varlyakov: 03 December 2012 - 03:26 AM

[Kevin OBrien]

Stoyan Varlyakov, on 03 December 2012 - 03:23 AM, said:

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).

[Stoyan Varlyakov]

Kevin OBrien, on 03 December 2012 - 06:40 AM, said:

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

This post has been edited by Stoyan Varlyakov: 03 December 2012 - 07:15 AM

[RBK]

Brian, on 02 December 2012 - 11:40 AM, said:

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.

[creed3020]

RBK, on 03 December 2012 - 08:20 AM, said:

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):

Quote

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

[bellyman]

Brian, on 02 December 2012 - 11:40 AM, said:

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

[Brian]

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.

[lcruisader]

Brian, on 02 December 2012 - 11:40 AM, said:

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

Synology DS1512+ NAS Review

Should the Synology box ever die, fail to power on, boot, etc. How to recover the data? Can another unit be purchased then move the drives to the new box and all is well?

[Kevin OBrien]

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.