Hello Neil & *, Zitat von NeilBrown <nfbrown@xxxxxxxxxx>:
[...] I'd like to deprecate /proc/mdstat. It is not really easy to extend.
while I understand that /proc/mdstat's format might be considered "frozen" as in "do not confuse old scripts by new formats", I'd hate to see /proc/mdstat go away without a similar replacement: calling "mdadm" (or any other CLI) to gather that information is unruly expensive when all you have to do is "watch cat /proc/mdstat" to manually monitor critical operations.
I'd recommend using "mdadm" to get status of an array, or examine file in /sys.
If there's to be a "new mdstat" in /sys, I'd be fine with that. That would help migration for those "old scripts grep'ing /proc/mdstat" you rightfully care about.
I suggest to include a file format version information on line 1 "/sys/.../mdstat", that way any client parsing such an interface could verify the file format first, and bail out if it doesn't support the currently presented format.
With regards Jens -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
