[OpenIndiana-discuss] COMSTAR qlt dropping link and resetting

[Mike La Spina]

Hi Adrian,

The SanBoxes?   -   Nexsan nothing in their logs
OK

Dmesg? :  
> May 17 17:33:47 hagrid fct: [ID 132490 kern.notice] NOTICE: qlt1,0 
> LINK UP, portid 20300, topology Fabric Pt-to-Pt,speed 8G May 17 
> 17:33:48 hagrid fct: [ID 132490 kern.notice] NOTICE: qlt0,0 LINK UP, 
> portid 10400, topology Fabric Pt-to-Pt,speed 8G

Seeing a single LINKUP notice would normally only occur on init. I would
say it's just that, otherwise you would have a LINKDOWN before the
LINKUP, meaning an event on the fabric is your root issue.

Stmf service?  Nothing at all in the logs
OK

Are you running snapshots?    yes am running auto snapshot service,  in
addition I'm running a script (hourly) that snapshots the volume and
send it over ssh to another machine.

I suspect an issue here. The snapshot service runs on fixed time
intervals e.g. 15Min 1Hour 24Hhour 1Month if your also adding a snapshot
that runs hourly to do a ZFS send/rec they will overlap. The overlap may
cause an excessive blocking to stmf sbd access and result in a timeout
for the XEN host initiators. I suggest you use the auto based existing
hourly snaps and simply send them over to the remote host or file system
using a script @ 15 minutes after the hour.

Dedup?   

Off - OK

Compression?

Lzjb - OK


IRQ sharing?
echo ::interrupts | mdb -k

IRQ  Vect IPL Bus    Trg Type   CPU Share APIC/INT# ISR(s) 
1    0x41 5   ISA    Edg Fixed  3   1     0x0/0x1   i8042_intr
3    0xb1 12  ISA    Edg Fixed  39  1     0x0/0x3   asyintr
4    0xb0 12  ISA    Edg Fixed  38  1     0x0/0x4   asyintr
5    0xb2 12  ISA    Edg Fixed  40  1     0x0/0x5   asyintr
9    0x80 9   PCI    Lvl Fixed  1   1     0x0/0x9   acpi_wrapper_isr
12   0x42 5   ISA    Edg Fixed  4   1     0x0/0xc   i8042_intr
16   0x83 9   PCI    Lvl Fixed  7   2     0x0/0x10  ohci_intr, ohci_intr
17   0x81 9   PCI    Lvl Fixed  5   1     0x0/0x11  ehci_intr
18   0x84 9   PCI    Lvl Fixed  8   3     0x0/0x12  ohci_intr,
ohci_intr, 
ohci_intr
19   0x82 9   PCI    Lvl Fixed  6   1     0x0/0x13  ehci_intr
22   0x40 5   PCI    Lvl Fixed  2   2     0x0/0x16  ata_intr, ata_intr
88   0x43 5   PCI    Edg MSI-X  9   1     -         ql_isr_aif
89   0x44 5   PCI    Edg MSI-X  10  1     -         ql_isr_aif
90   0x45 5   PCI    Edg MSI-X  11  1     -         ql_isr_aif
91   0x46 5   PCI    Edg MSI-X  12  1     -         ql_isr_aif
92   0x60 6   PCI    Edg MSI-X  13  1     -         igb_intr_tx_other
93   0x61 6   PCI    Edg MSI-X  14  1     -         igb_intr_rx
94   0x62 6   PCI    Edg MSI-X  15  1     -         igb_intr_tx_other
95   0x63 6   PCI    Edg MSI-X  16  1     -         igb_intr_rx
96   0x64 6   PCI    Edg MSI-X  36  1     -         igb_intr_tx_other
97   0x65 6   PCI    Edg MSI-X  37  1     -         igb_intr_rx
98   0x66 6   PCI    Edg MSI-X  41  1     -         igb_intr_tx_other
99   0x67 6   PCI    Edg MSI-X  42  1     -         igb_intr_rx
100  0x68 6   PCI    Edg MSI-X  43  1     -         igb_intr_tx_other
101  0x69 6   PCI    Edg MSI-X  44  1     -         igb_intr_rx
102  0x6a 6   PCI    Edg MSI-X  45  1     -         igb_intr_tx_other
103  0x6b 6   PCI    Edg MSI-X  46  1     -         igb_intr_rx
104  0x47 5   PCI    Edg MSI    30  1     -         qlt_isr
105  0x48 5   PCI    Edg MSI    31  1     -         qlt_isr
160  0xa0 0          Edg IPI    all 0     -         poke_cpu
208  0xd0 14         Edg IPI    all 1     -
kcpc_hw_overflow_intr
209  0xd1 14         Edg IPI    all 1     -         cbe_fire
210  0xd3 14         Edg IPI    all 1     -         cbe_fire
240  0xe0 15         Edg IPI    all 1     -         xc_serv
241  0xe1 15         Edg IPI    all 1     -         apic_error_intr

OK


Dr T Adrian Carpenter
Reader in Imaging Sciences
Wolfson Brain Imaging Centre


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