Proxmox VE iSCSI strange log on Synology Storage

[juniper]

Hi,

i have a cluster of 5 server connected (iSCSI) with a Synology RS3617xs+ (10GBE interface);

all seems working fine but on Synology i have some strange log:

continuous:

2018-01-31T18:39:33+01:00 mksyn kernel: iscsi_target_parameters.c:44:iscsi_login_rx_data rx_data returned 0, expecting 48.
2018-01-31T18:39:35+01:00 mksyn kernel: iscsi_target_parameters.c:44:iscsi_login_rx_data rx_data returned 0, expecting 48.
2018-01-31T18:39:35+01:00 mksyn kernel: iscsi_target_parameters.c:44:iscsi_login_rx_data rx_data returned 0, expecting 48.
2018-01-31T18:40:05+01:00 mksyn kernel: SYSTEM:    Last message 'iscsi_target_paramet' repeated 15 times, suppressed by syslog-ng on mksyn
2018-01-31T18:40:05+01:00 mksyn kernel: iscsi_target_parameters.c:44:iscsi_login_rx_data rx_data returned 0, expecting 48.
2018-01-31T18:40:05+01:00 mksyn kernel: iscsi_target_parameters.c:44:iscsi_login_rx_data rx_data returned 0, expecting 48.
2018-01-31T18:40:09+01:00 mksyn kernel: iscsi_target_parameters.c:44:iscsi_login_rx_data rx_data returned 0, expecting 48.

and

2018-01-31T18:42:55+01:00 mksyn kernel: [121563.213710] iSCSI_F:iscsi_target_login.c:1213:iscsi_target_login_sess_out iSCSI Login negotiation failed - I[10.10.200.153:48182], T[]
2018-01-31T18:42:58+01:00 mksyn kernel: [121566.126965] iSCSI_F:iscsi_target_login.c:1213:iscsi_target_login_sess_out iSCSI Login negotiation failed - I[10.10.200.154:34932], T[]
2018-01-31T18:42:59+01:00 mksyn kernel: [121567.084450] iSCSI_F:iscsi_target_login.c:1213:iscsi_target_login_sess_out iSCSI Login negotiation failed - I[10.10.200.151:43236], T[]
2018-01-31T18:43:03+01:00 mksyn kernel: [121570.732065] iSCSI_F:iscsi_target_login.c:1213:iscsi_target_login_sess_out iSCSI Login negotiation failed - I[10.10.200.150:51542], T[]
2018-01-31T18:43:05+01:00 mksyn kernel: [121573.008544] iSCSI_F:iscsi_target_login.c:1213:iscsi_target_login_sess_out iSCSI Login negotiation failed - I[10.10.200.152:42280], T[]
2018-01-31T18:43:05+01:00 mksyn kernel: [121573.342183] iSCSI_F:iscsi_target_login.c:1213:iscsi_target_login_sess_out iSCSI Login negotiation failed - I[10.10.200.153:48186], T[]

Do you have some hints about? I contacted Synology Support but without any results...

 

[christophe]

Hi,

Same problem here, with :
- 3 nodes cluster (pve-manager/5.1-46/ae8241d4 (running kernel: 4.13.13-3-pve))
- 4 x 1GbE nics by node,
- 2 x Synology RS3617RPxs (HA setup).
- iSCSI (4 paths)

Tons of logs like yours, everything seems to be working fine but I recently noticed a 6 times slower restore time (vs OMV 2 paths iSCSI)...

Thanks,

Christophe.

 

[juniper]

Hi,
try to contact synology support, i've no fortune with...

Synology support is ridicolous...no help about this problem...

don't change TARGET_THREAD_SET_COUNT, doesn't solve the problem...

do you have bond interfaces for synology node? I think problem is there...but i can't reconfigure my node for now, i'll try multipath or single interface on iscsi storage.

 

[christophe]

Hi,

Just now trying Syno support...

Christophe.