topic WAAS DRE Utilization in Application Networking

WAAS DRE Utilization

Patrick Murphy — Wed, 30 May 2012 13:34:22 GMT

Hi All:

I've notice our DRE cache has dropped from days down to 4hrs hours in the data center. Before adding another appliance to the farm, I would like to know if there is a way to see what is eating up the cache? For example, is it a specific site using more DRE cache than others or a particular traffic flow eating up the majority. What kind of visability does the WAAS provide into this?

Thanks,

Patrick

USNAPNWA003# sh stat dre

Cache:
Status: Usable, Oldest Data (age): 4h
Total usable disk size: 486383 MB, Used: 96.47%

Connections: Total (cumulative): 86069137 Active: 3626

Encode:
   Overall: msg: 3203768735, in: 29227196 MB, out: 21539136 MB, ratio: 26.30%
       DRE: msg: 2384857012, in: 28963205 MB, out: 24652942 MB, ratio: 14.88%
DRE Bypass: msg: 1001849123, in: 263983 MB
        LZ: msg: 2403780584, in: 6210196 MB, out: 2825727 MB, ratio: 54.50%
LZ Bypass: msg: 799988151, in: 18706729 MB
    Avg latency:      1.787 ms, Avg msg size:   9565 B
Message size distribution:
    0-1K=66% 1K-5K=10% 5K-15K=5% 15K-25K=3% 25K-40K=4% >40K=10%
Decode:
   Overall: msg: 3354130897, in: 5592399 MB, out: 15177371 MB, ratio: 63.15%
       DRE: msg: 2912664836, in: 9287766 MB, out: 14952478 MB, ratio: 37.88%
DRE Bypass: msg: 1410059901, in: 224893 MB
        LZ: msg: 2378716656, in: 2608523 MB, out: 6535534 MB, ratio: 60.09%
LZ Bypass: msg: 975414241, in: 2983876 MB
    Avg latency:      2.567 ms, Avg msg size:   4744 B
Message size distribution:
    0-1K=69% 1K-5K=16% 5K-15K=3% 15K-25K=2% 25K-40K=3% >40K=3%

WAAS DRE Utilization

Daniel Arrondo Ostiz — Thu, 31 May 2012 08:25:52 GMT

Hi Patrick,

You can get separate statistics for each of the DRE peers using the command "WAE# show statistics peer dre". With this command, you should be able to see which peer is consuming most of the disk space and the amount of connections each of them have.

I hope this helps

Daniel

WAAS DRE Utilization

Patrick Murphy — Thu, 31 May 2012 19:31:08 GMT

Perfect. That is exactly what I needed. I have it narrow down to flows between two appliances. Thanks!

Re: WAAS DRE Utilization

rojesara.prashant — Tue, 06 Mar 2018 04:04:13 GMT

WAE-7341-K9 :

I am high CPU utilization issue on /state/likewise/sw , /sw and /swstore. Is there any action we can do to reduce it ?

RAID Physical disk information:
disk00: Online               3LM1EJQP         286102 MB
disk01: Online               3SJ08VNJ         286102 MB
disk02: Online               3SJ07PE9         286102 MB
disk03: Online               6SJ4N980         286102 MB

RAID Logical drive information:
   raid-disk:   RAID-5 Okay     858000 MB
               Enabled (read-cache) Enabled (write-back)

Mounted file systems:
MOUNT POINT    TYPE       DEVICE                  SIZE     INUSE      FREE USE%
/sw            internal   /dev/sda1               991MB     927MB      64MB 93%
/swstore       internal   /dev/sda2               991MB     533MB     458MB 53%
/state         internal   /dev/sda3              7935MB     236MB    7699MB   2%
/local/local1 SYSFS      /dev/sda6             33725MB     962MB   32763MB   2%
/state/likewise/sw
               internal   /dev/sda1               991MB     927MB      64MB 93%
/state/likewise/local/local1
               internal   /dev/sda6             33725MB     962MB   32763MB   2%
/local/local1/spool
               PRINTSPOOL /dev/data1/spool        991MB      32MB     959MB   3%
/obj1          CONTENT    /dev/data1/obj       224176MB    3303MB 220873MB   1%
/ackq1         internal   /dev/data1/ackq        2379MB       1MB    2378MB   0%
/plz1          internal   /dev/data1/plz         7141MB       0MB    7141MB   0%