The following command that I use to backup used to take 5 minutes to complete and since last week it is taking around 25 minutes. This is after restarting a switch stack the server is connected to. The NAS 192.6.222.116 is in a different subnet to the server. How should I go about troubleshooting this issue?
zfs send -Rv shares1-pool/homedir@Cron-Snap-OraZ-Mon-030723 | pigz > /NAS/test/archive_shares1.gz
The server is not struggling for memory,
root@mars:~# echo ::memstat|mdb -k
Page Summary Pages Bytes %Tot
---------------------------- ---------------- ---------------- ----
Kernel 724362 5.5G 9%
Defdump prealloc 173879 1.3G 2%
ZFS 912162 6.9G 11%
Anon 1282098 9.7G 16%
Exec and libs 44767 349.7M 1%
Page cache 986194 7.5G 12%
OSM 1792000 13.6G 22%
Free (cachelist) 469418 3.5G 6%
Free (freelist) 1774352 13.5G 22%
Total 8159232 62.2G
iostat,
cpu
us sy st id
13 4 0 84
extended device statistics
r/s w/s kr/s kw/s wait actv wsvc_t asvc_t %w %b device
0.0 0.4 0.0 0.8 0.0 0.0 0.0 0.1 0 0 sd3
0.2 0.4 0.8 0.8 0.0 0.0 0.0 3.2 0 0 sd5
0.4 48.4 51.2 1507.4 0.0 0.1 0.0 1.5 0 1 ssd11
0.0 49.2 0.0 1507.4 0.0 0.1 0.0 1.6 0 1 ssd12
0.0 23.4 0.0 729.6 0.0 0.0 0.0 1.3 0 1 ssd13
0.0 23.0 0.0 729.6 0.0 0.0 0.0 1.1 0 1 ssd14
50.8 15.8 5527.4 108.8 0.0 0.3 0.0 4.3 0 24 ssd15
53.4 16.2 4624.1 108.8 0.0 0.3 0.0 4.7 0 24 ssd16
0.0 15.6 0.0 177.8 0.0 0.0 0.0 0.9 0 0 ssd19
0.0 15.8 0.0 177.8 0.0 0.0 0.0 0.9 0 0 ssd20
39.2 58.8 320.6 1293.5 0.0 0.2 0.0 1.8 0 6 ssd21
48.8 57.0 334.9 1293.5 0.0 0.2 0.0 2.2 0 7 ssd22
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 st2
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 st3
0.0 305.2 0.0 9766.4 7.0 10.0 22.9 32.8 100 100 192.6.222.116:/nfs_share
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 192.6.223.116:/nfs_share
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 192.6.224.40:/nfs_share
dlstat
LINK IPKTS RBYTES OPKTS OBYTES
net0 50.82G 9.10T 39.06G 134.91T
vmstat
kthr memory page disk faults cpu
r b w swap free re mf pi po fr de sr s3 s5 sd sd in sy cs us sy id
0 0 0 32028280 10823336 589 877 3469 0 0 0 0 7 7 40 40 13788 14114 9252 6 2 91
mpstat
CPU minf mjf xcal intr ithr csw icsw migr smtx srw syscl usr sys st idl
0 72 10 439 1053 370 920 55 60 114 0 1207 6 2 0 93
1 159 18 1190 2957 2276 1362 42 87 130 0 2185 7 3 0 90
2 110 19 512 1045 287 1401 56 86 135 0 2209 7 2 0 91
3 97 10 370 571 45 946 53 61 116 0 1362 6 2 0 92
4 73 9 450 929 437 904 52 59 115 0 1201 6 2 0 93
5 158 19 536 2706 1933 1411 50 88 134 0 2375 7 3 0 90
6 110 16 1137 2476 1821 1349 57 84 132 0 2236 7 3 0 90
7 97 9 373 2050 1518 959 54 61 115 0 1339 6 2 0 92
On the NAS, there isn't any errors/warnings and seems to have enough space available for the backup.
Thanks in advance.
