Looking at the DiskStation DS414slim, I discovered that DSM was now available in version 5. But it wasn’t available from the DSM 4.2 control panel on my DS409slim. After a few Internet diggings, I learned that it should be possible to install DSM5 on a DS409slim. The main trick is to fake another DS. Looking at CPUs in Synology’s NAS, you can see that DS409slim and DS411j share the same Marvell Kirkwood mv6281 CPU and 16-bit@DDR2 architecture. That’s the trick to be able to use DSM5 on DS409slim.
The other day, my Syno DS409slim started beeping. It turned out that two of the Toshiba MK1059GSM disks had SMART errors. I wanted to get some new but they are not available any more. After looking at my preferred e-shop, I finally went for Hitachi Travelstar 5K1000 (HTS541010A9E680). It is not listed in “What hard drive models are supported by Synology products?” page. But it seems to be working fine ; for a bit more than three weeks now.
Here’s a small summary about replacing the disks on Synology DS409slim using DSM 4.2 and SHR volume.
Quoting the Package Center description: “Directory Server provides LDAP service with centralized access control (…)”.
Let’s have a (quick) look at what Synology’s LDAP service provides.
There are many times when I see IT managers not monitoring their user’s services at all or setup a general application and consider the job done. Most of the time, they realise much is missing when they have to report about (recurrent) issues regarding business critical services. Monitoring is not to be considered as a cure solution but as a forecast tool. When planned and configured as such, it’ll help prevent predicable failures and drive capacity planning.