disk errors with san snapshot

so we have a solrais 9 system attached to an HP SAN.

we are using sssu to do snap clones every hour.

the only problem is the we get write errors on the solrais system every time we do a snap.

from /var/adm/messages

Apr 21 14:37:48 svr001 scsi: [ID 107833 kern.warning] WARNING: /scsi_vhci/ssd@g600508b4001051790000800006820000 (ssd19):
Apr 21 14:37:48 svr001        Error for Command: write(10)               Error Level: Retryable
Apr 21 14:37:48 svr001 scsi: [ID 107833 kern.notice]  Requested Block: 9344560                   Error Block: 9344560
Apr 21 14:37:48 svr001 scsi: [ID 107833 kern.notice]  Vendor: HP                                 Serial Number: 286000080000
Apr 21 14:37:48 svr001 scsi: [ID 107833 kern.notice]  Sense Key: Unit Attention
Apr 21 14:37:48 svr001 scsi: [ID 107833 kern.notice]  ASC: 0x3f (<vendor unique code 0x3f>), ASCQ: 0x3, FRU: 0x0
Apr 21 14:37:48 svr001 scsi: [ID 107833 kern.warning] WARNING: /scsi_vhci/ssd@g600508b4001051790000800006820000 (ssd19):
Apr 21 14:37:48 svr001        Error for Command: write(10)               Error Level: Retryable
Apr 21 14:37:48 svr001 scsi: [ID 107833 kern.notice]  Requested Block: 1784272                   Error Block: 1784272
Apr 21 14:37:48 svr001 scsi: [ID 107833 kern.notice]  Vendor: HP                                 Serial Number: 286000080000
Apr 21 14:37:48 svr001 scsi: [ID 107833 kern.notice]  Sense Key: Unit Attention
Apr 21 14:37:48 svr001 scsi: [ID 107833 kern.notice]  ASC: 0x3f (<vendor unique code 0x3f>), ASCQ: 0x3, FRU: 0x0

any thoughts??