Using Hitachi Travelstar 5K1000 in Synology 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.
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Expand a Synology Hybrid RAID volume

I own a Synology DS409slim with two 1TB Toshiba and two 500GB Western Digital disks. Configured using SHR (Synology Hybrid RAID), it allows one volume split on those four disks. I bought this NAS because it uses 2.5″ disks and because of the SHR feature.

I had one 1TB Toshiba in my MacBook but I took it off and planned on putting it in the NAS, replacing one of the 500GB disk. Here’s what happened.
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