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- Feb 15, 2014
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Should be possible.I wonder if it would work to add a third mirror device and then remove the defective one?
Should be possible.I wonder if it would work to add a third mirror device and then remove the defective one?
I don't see what advantage that would bring but if you try it, you should add any results to the bug report. It's terrible that this bug has been ignored for so long. I'm sure it's a manpower/money issue, I deal with that everyday and I hate cutting something basic out of a product just because I'm not specifically funded for it but that is the way of the world so we can charge our customers more to add those features later. I'm sure iXsystems has to manage the manpower/money thing as well, especially for a free product.I wonder if it would work to add a third mirror device and then remove the defective one?
The advantage would be that the bug has apparently been resolved for the 'adding a mirror drive' case. So the third drive would presumably get grub installed. But I can't test it because I am booting from two SSDs and I haven't got a spare SATA port for a third one.I don't see what advantage that would bring but if you try it, you should add any results to the bug report. It's terrible that this bug has been ignored for so long. I'm sure it's a manpower/money issue, I deal with that everyday and I hate cutting something basic out of a product just because I'm not specifically funded for it but that is the way of the world so we can charge our customers more to add those features later. I'm sure iXsystems has to manage the manpower/money thing as well, especially for a free product.
Don't worry about it. Just use it as it's supposed to be used.I didn't want to start a new thread for it, and I had read quite a bit, but how do you set the ashift correctly for your boot ssd when it does a ZFS root?
Agreed. You do not need to worry about the ashift for a boot device as a SSD will take well over the lifespan of the NAS before it remotely comes close to wearing out. I guess you could but you should find out if in fact the ashift is off in the first place. I don't know if it is for FreeNAS 9.3.1.Don't worry about it. Just use it as it's supposed to be used.
Agreed. You do not need to worry about the ashift for a boot device as a SSD will take well over the lifespan of the NAS before it remotely comes close to wearing out. I guess you could but you should find out if in fact the ashift is off in the first place. I don't know if it is for FreeNAS 9.3.1.
Yes.would a USB to SSD laptop converter over USB work
No, but it's the boot pool. Who cares.would it be as fast as using a SATA connector?
Thanks for the quick response. For now I used one I have (the kind the requires external power) and plugged in where one of the failed usb drivers was removed, hit replace and it detected it. So I am giving this a test. I think I may find some smaller ssd (as 128gb x2 is indeed a waste) but we will see how this works and if so I may get one of the adapters that are small (just usb to ssd) and post the findings of them as well as screenshot incase someone wants to have the dual usb idea with the reliability of SSD and without waisting the port or dealing with the issues I have (constantly replacing failed cheap USB thums)Yes.
No, but it's the boot pool. Who cares.
I was referring to putting it on the usb but via an adapter so the sata wouldn't be connected to a sata port on pc,but connected with an adapter over usb thus be seen as usb thumb but being reliable as ssd@NicklowiczComputers LLC Unless you have an older 32/64GB cache SSD, it's a waste for a few reasons:
- It takes up a SATA port, and if its not SATA3, a USB3 flash drive will operate close to SATA2 speeds (PNY's do 190/130 r/w)
- While booting may be sped up a bit with a SSD, beyond that, there's very little benefit.
- It will take a significant amount of time (several years, or quite a few boot environments/boot snapshots) to fill a 32GB USB drive).
Yes. I am currently using 1 did resilver with other being usb. I will do both and it should be ok running these over usb?I think using 128GB SSDs is only a waste if you can get decent quality smaller one's cheaper, and if you have a better use for the 128GB ones you already have.
You only think it does. It only works with a Windows driver.If your motherboard supports software (firmware) RAID1 (the one I'm spec'ing out does), what about mirroring the boot devices outside of the operating system.
All parts of a mirror have GRUB installed on them to allow any of them to boot in most failure scenarios, so that's not as big of an advantage as it might sound.That provides the benefit of always booting regardless of which storage device failed.