During that time, everything was offline with the exception of the admin console.Īt no time did I have to use anything other than Safari on my iPad for the recovery and rebuild. I wasn’t paying attention to the clock, but this probably took just 3 minutes. Recoveryĭuring the recovery and rebuilding process, I was notified and prompted to acknowledge that system services will be disabled for a moment. On the bright side, the volume was still healthy and there has been no loss of availability. The only other sign of problems was in the storage manager where it reported that the SSD cache has crashed. On the surface, I could not tell that anything has changed. Let’s be ungrateful, unplug the external SSD cache and see what happens!Ī few seconds after unplugging the eSATA cable, the NAS started beeping. A loss of the datastore would be catastrophic. I have an ESXi host which uses the DS1513+ as a datastore for my home lab. What would happen if the cable comes lose or is accidentally disconnected? Unplug it! Here is a perfectly valid point that had to be examined.
It’s an extension of the internal SATA ports, just utilizing a wider voltage range to improve noise rejection. The pink elephant in the room was that of stability and data reliability. Huge shoutout to those who responded, especially Ben_77, Zbig_Leboski, and EEvilCorp who provided some well written thoughts to consider. While this does also enable the ability to extend the volume with external drives, that is out of scope for this topic. After the write up on using external drives for the SSD cache, I shared the article with the wonderful community on Reddit for feedback.Īs a point of order, the intention of this research is to enable the support of an SSD cache.
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