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by maxxfi
Thu Jul 07, 2016 2:01 pm
Forum: Hardware Mods
Topic: Increase fan speed?
Replies: 2
Views: 759

Re: Increase fan speed?

You problably bought the wrong type of fan.
I'm not sure if it's the same also for your NAS, but often Synology uses the "locked rotor" type instead of the (more common) with "tachometer signal"
The two types work in a completely differrent way.
by maxxfi
Thu Jul 07, 2016 1:53 pm
Forum: Installation, Configuration, Migration, Expansion
Topic: increasing disk size, reduce disk number
Replies: 3
Views: 727

Re: increasing disk size, reduce disk number

Nope. You cannot reduce the amount of disks in a RAID system.
If you replace the disks and you stop providing the 5th one, you will leave the volume in a degraded state (i.e. without redundancy)
by maxxfi
Thu Jul 07, 2016 1:50 pm
Forum: Installation, Configuration, Migration, Expansion
Topic: SHR or Raid 5
Replies: 2
Views: 497

Re: SHR or Raid 5

Mainly, CPU and disks will be busy running the scrubbing operation, so other accesses to the NAS may be slow.
It depends case by case (which is why the default speed is so low), so you have to judge yourself if it's acceptable in your situation.
by maxxfi
Mon Jun 13, 2016 5:35 pm
Forum: Installation, Configuration, Migration, Expansion
Topic: Changing from Raid-5 to SHR
Replies: 4
Views: 2430

Re: Changing from Raid-5 to SHR

Note that you cannot add to a SHR volume disks smaller than what you already have in the volume, so DON'T start your SHR with the 8TB unless you plan to have only 8TB (or bigger)
by maxxfi
Sun Jun 05, 2016 12:14 pm
Forum: Installation, Configuration, Migration, Expansion
Topic: Repair Volume hangs with new disk
Replies: 6
Views: 1039

Re: Repair Volume hangs with new disk

I don't know exactly how the DSM is handling the case, but it could be there is some issue when adding a 3TB disk (which requires GPT partitioning) next to a 2TB one that still uses MBR, especially in regards to having the two first partitions (=system) exactly aligned for mirroring.
by maxxfi
Wed Jun 01, 2016 7:12 pm
Forum: System Management
Topic: [SOLVED] Check RAID type and hard drives used
Replies: 4
Views: 4833

Re: Check RAID type and hard drives used

RAID 1 is in practice equivalent to SHR, especially on a 2-bay unit. Their is no 'RAID Basic'. You can start with one disk in 'Basic' mode and when you add a second disk expand to a RAID 1 to get a mirrored configuration Or you can start with one disk in 'SHR without data protection of fault toleran...
by maxxfi
Wed Jun 01, 2016 7:05 pm
Forum: 2013 Synology DiskStation Hardware Discussion
Topic: Motherbaord on NAS 413j ?
Replies: 2
Views: 984

Re: Motherbaord on NAS 413j ?

Marvell Armada 370 (ARMv7) @1.2 GHz
512MB of RAM, directly soldered on the mainboard
by maxxfi
Wed Jun 01, 2016 6:31 am
Forum: System Management
Topic: Synology logs
Replies: 4
Views: 682

Re: Synology logs

To change behaviour you need to go down with the CLI, and e.g. if your version of DSM use syslog-ng, reconfigure the file /etc/syslog-ng/syslog-ng,conf.
Happy hacking! :)
by maxxfi
Tue May 31, 2016 2:57 pm
Forum: System Management
Topic: Synology logs
Replies: 4
Views: 682

Re: Synology logs

I don't knoiw whether things have changed in latest versions, but for a long time DSM retained its heritage of being designed for tiny boxes with small disks, and so systlog was configured to suppress most of its output. Reducing syslog output has been also a necessary measure in order to help hiber...
by maxxfi
Mon May 30, 2016 6:11 am
Forum: Installation, Configuration, Migration, Expansion
Topic: Synology DS411slim - no IP-address router - not found Synology Assistant (?)
Replies: 9
Views: 1369

Re: Synology DS411slim - no IP-address router - not found Synology Assistant (?)

Update: we've formatted the four HDD and setup new partitions, but are still unable to access the NAS from the router. At this point, we're concluding that the UTP-interface of the NAS is probably broken. When the NAS boots up (even without disks), one the first it does it to initialize the NIC and...
by maxxfi
Fri May 27, 2016 10:27 am
Forum: Installation, Configuration, Migration, Expansion
Topic: How to know if files form Disk 1 are on Disk 2 in SHR
Replies: 2
Views: 418

Re: How to know if files form Disk 1 are on Disk 2 in SHR

You cannot because not even DSM knows about it.
DSM just tells to the disk subsystem 'write this data'. If the disk driver that is configured in a RAID 1 mirror doesn't return error it means it's doing its job i.e. it was successfully able to write both copies of the data.
by maxxfi
Fri May 27, 2016 10:22 am
Forum: Installation, Configuration, Migration, Expansion
Topic: Configuration of DS416 for backup purposes
Replies: 22
Views: 2375

Re: Configuration of DS416 for backup purposes

At least theoretically, RAID 0 can be faster than Synology-JBOD, as in RAID 0 data are striped and so they are read/written on parallel disks. JBOD for Synology is a concatenation of disks so only one disk is accessed at a single time. The different structure also explains why one cannot be expanded...
by maxxfi
Wed May 25, 2016 10:27 am
Forum: Installation, Configuration, Migration, Expansion
Topic: Can I install drives from a DS212 in a Ds209?
Replies: 4
Views: 434

Re: Can I install drives from a DS212 in a Ds209?

the DS firmware/OS is stored on a volume, (assumedly disk 1 of multi-disk volumes Nope. Most of the DSM is stored on *every* disk in use in the system (i.e. any healthy disk, except those still marked as Non-Initialized), and a small part on an internal flash memory on board ot the NAS. That part r...
by maxxfi
Tue May 24, 2016 12:55 pm
Forum: Installation, Configuration, Migration, Expansion
Topic: Advantages/Disadvantages of Synology Hybrid Raid?
Replies: 346
Views: 265113

Re: Is SHR proprietary?

Does SHR have the same limitation? If I suffered a similar failure on a Synology with SHR, would I be stuck behind another proprietary wall, or is the SHR format documented enough that tools exists that could allow me to fix the source of corruption to get the device into (at least) a read only sta...
by maxxfi
Mon May 23, 2016 11:44 am
Forum: Installation, Configuration, Migration, Expansion
Topic: Upgrading Drives In DS411+II (Non-RAID)
Replies: 2
Views: 351

Re: Upgrading Drives In DS411+II (Non-RAID)

Probably the most you can is: - plug one 6TB to the last empty bay, make a new volume out of it - from diskstation, one by one select the folders on the old disks and set them to move to the new volume - if you have apps installed, you probably have to remove them and install them again on the new v...

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