Ошибка возникает на std-def и un-def. [root@server-x86-64 ~]# zfs list NAME USED AVAIL REFER MOUNTPOINT pool0 134K 14,4G 24K /pool0 pool0/data 24K 14,4G 24K /pool0/data pool0/files 24K 14,4G 24K /pool0/files [root@server-x86-64 ~]# ztest loading space map for vdev 0 of 1, metaslab 24 of 62 ... loading space map for vdev 0 of 1, metaslab 26 of 62 ... loading space map for vdev 0 of 1, metaslab 49 of 62 ... 24.1M completed ( 22MB/s) estimated time remaining: 0hr 00min 00sec error: Pool 'ztest' has encountered an uncorrectable I/O failure and the failure mode property for this pool is set to panic. /sbin/ztest[0x408f3c] /lib64/libpthread.so.0(+0x12890)[0x7fae45211890] /lib64/libc.so.6(gsignal+0x10b)[0x7fae450767ab] /lib64/libc.so.6(abort+0x121)[0x7fae45061515] /lib64/libzpool.so.2(+0x3b72f)[0x7fae4563a72f] /lib64/libzpool.so.2(panic+0x8c)[0x7fae4563a7bc] /lib64/libzpool.so.2(zio_suspend+0xb9)[0x7fae4572e7e9] /lib64/libzpool.so.2(+0x13084b)[0x7fae4572f84b] /lib64/libzpool.so.2(zio_execute+0x8d)[0x7fae4572cd1d] /lib64/libzpool.so.2(+0x3c4f6)[0x7fae4563b4f6] /lib64/libzpool.so.2(zk_thread_helper+0x12c)[0x7fae45638b7c] /lib64/libpthread.so.0(+0x7ed3)[0x7fae45206ed3] /lib64/libc.so.6(clone+0x3f)[0x7fae451381cf] child died with signal 6
Увеличение объёма оперативной памяти поможет обойти эту ошибку. На 16Gb у меня не вылезло, возможно можно меньше указать.