On Tue, 26 Apr 2016, ching lu wrote: > Hi all, > > if i have 1 SSD caching 1 HDD using bcache, the cache mode is writeback > > if the PC shutdown/unmount normally, will all dirty data in the cache > be flushed to backing device before poweroff? No, it will remain in the cache. > i am afraid that SSD lose data if left without power for a long time. > e.g. hoilday. Wouldn't your data be retained if you used the SSD alone? SSDs should be stable in a powered off state unless it is a bad device. There exist RAM-based disks that may be volatile, but that is unlikely to be your situation. -- Eric Wheeler > > Thanks in advance, > C > -- > To unsubscribe from this list: send the line "unsubscribe linux-bcache" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
