11g RAC : Download & Install cluvfy(Cluster verify) Utility

Posted by Sagar Patil

How do I install CVU from OTN? Download From Here

1. Create a CV home( say /home/username/mycvhome ) directory. It should have at least 35M of free disk space.
2. cd /home/username/mycvhome
3. copy the cvupack_<platform>.zip file to /home/username/mycvhome
4. unzip the file: unzip cvupack<platform>.zip
5. (Optional) Set the environmental variable CV_DESTLOC. This should point to a writable area on *all* nodes. When invoked, the tool will attempt to copy the necessary bits as required to this location. Make sure the location exists on all nodes and it has write permission for CVU user. It is strongly recommended that you should set this variable. If this variable has not been set, CVU will use “/tmp” as the default. “setenv CV_DESTLOC /tmp/cvu_temp”

How do I know about cluvfy commands?
-type ‘cluvfy comp -list’

how to check the entire Oracle Clusterware stack
– cluvfy stage -post crsinst

How do I check the Oracle Clusterware stack and other sub-components of it?
– Use the ‘comp ocr’ command to check the integrity of OCR. Similarly, you can use ‘comp crs’ and ‘comp clumgr’ commands to check integrity of Oracle Clustereare and clustermanager sub-components.

How do I get detail output of a check?
– Cluvfy supports a verbose mode. By default, cluvfy reports in non-verbose mode. To get detailed output of a check, use the flag ‘-verbose’ in the command line.

How do I check network or node connectivity related issues?
-Use commands like ‘nodereach’ or ‘nodecon’ for this purpose.For syntax, type comp -help command on the command prompt.
If the ‘comp nodecon’ command is invoked without -i, cluvfy will attempt to discover all the available interfaces and the corresponding IP address & subnet. Then cluvfy will try to verify the node connectivity per subnet. You can run this command in verbose mode

SQLIO SAN/Local Disk Subsystem Benchmark Tool

Posted by Sagar Patil
  1. Download http://www.microsoft.com/downloads/details.aspx?familyid=9a8b005b-84e4-4f24-8d65-cb53442d9e19&displaylang=en and install SQLIO
  2. It will be installed under C:\Program Files\SQLIO. Please add this directory in your FIle Path
  3. SQLIO will need a test file to run against your drives for performance.

First look at C:\SQLIO\param.txt which would look like something below.

  • First parameter (D:\testfile.dat)- the physical location of the testing file. Change the drive letter to point to the SAN drive you want to test, like D:\testfile.dat here.
  • Last parameter (10)- the size of the testing file in megabytes. Increase this to 20480 or larger.

Now run following command to create D:\testfile.dat. test file. “sqlio -kW -s10 -fsequential -o8 -b8 -LS -Fparam.txt timeout /T 10”

Please see there is a file created at “D:\testfile.dat”, here 100MB as I defined it in the param.txt

Testing Your SAN Performance:

Let’s create a batch file SAN_RESULTS.TXT to take all of the possibilities and run them all.

— Random Reads
sqlio -kW -t3 -s90 -dD -o1 -frandoD -b64 -BH -LS Testfile.dat
sqlio -kW -t3 -s90 -dD -o2 -frandoD -b64 -BH -LS Testfile.dat
sqlio -kW -t3 -s90 -dD -o4 -frandoD -b64 -BH -LS Testfile.dat
sqlio -kW -t3 -s90 -dD -o8 -frandoD -b64 -BH -LS Testfile.dat
sqlio -kW -t3 -s90 -dD -o16 -frandoD -b64 -BH -LS Testfile.dat
sqlio -kW -t3 -s90 -dD -o32 -frandoD -b64 -BH -LS Testfile.dat
sqlio -kW -t3 -s90 -dD -o64 -frandoD -b64 -BH -LS Testfile.dat
sqlio -kW -t3 -s90 -dD -o128 -frandoD -b64 -BH -LS Testfile.dat

— Sequential Reads
sqlio -kW -t3 -s90 -dD -o1 -fsequential -b64 -BH -LS Testfile.dat
sqlio -kW -t3 -s90 -dD -o2 -fsequential -b64 -BH -LS Testfile.dat
sqlio -kW -t3 -s90 -dD -o4 -fsequential -b64 -BH -LS Testfile.dat
sqlio -kW -t3 -s90 -dD -o8 -fsequential -b64 -BH -LS Testfile.dat
sqlio -kW -t3 -s90 -dD -o16 -fsequential -b64 -BH -LS Testfile.dat
sqlio -kW -t3 -s90 -dD -o32 -fsequential -b64 -BH -LS Testfile.dat
sqlio -kW -t3 -s90 -dD -o64 -fsequential -b64 -BH -LS Testfile.dat
sqlio -kW -t3 -s90 -dD -o128 -fsequential -b64 -BH -LS Testfile.dat

  • -kW means writes (as opposed to reads)
  • -t23means two threads
  • -s120 means test for 120 seconds
  • -dD means drive letter D (Please edit and add your SAN drive there)
  • -o1 means one outstanding request (not piling up requests)
  • -frandom means random access (as opposed to sequential)
  • -b64 means 64kb IOs

Commonly used SQLIO.exe options

Option

Description

-o

Specify the number of outstanding I/O requests. Increasing the queue depth may result in a higher total throughput. However, increasing this number too high may result in problems (described in more detail below). Common values for this are 8, 32, and 64.

-LS

Capture disk latency information. Capturing latency data is recommended when testing a system.

-k

Specify either R or W (read or write).

-s

Duration of test (seconds). For initial tests, running for 5-10 minutes per I/O size is recommended to get a good idea of I/O performance.

-b

Size of the IO request in bytes.

-f

Type of IO to issue. Either ‘random’ or ‘sequential’.

-F

Name of the file which will contain the test files to run SQLIO against.

Then go to the command prompt in the same directory as SQLIO is installed and type: “SANTESTER.BAT > SAN_RESULTS.TXT ” , You will see a output like below.

 

For in depth details see Using SQLIO.rtf

 

C:\Program Files\SQLIO>REM — Sequential Reads

C:\Program Files\SQLIO>sqlio -kW -t1 -s90 -dD -o1 -fsequential -b64 -BH -LS Testfile.dat
sqlio v1.5.SG
using system counter for latency timings, 3579545 counts per second
1 thread writing for 90 secs to file D:Testfile.dat
using 64KB sequential IOs
enabling multiple I/Os per thread with 1 outstanding
buffering set to use hardware disk cache (but not file cache)
using current size: 100 MB for file: D:Testfile.dat
initialization done
CUMULATIVE DATA:
throughput metrics:
IOs/sec: 353.01
MBs/sec: 22.06
latency metrics:
Min_Latency(ms): 0
Avg_Latency(ms): 2
Max_Latency(ms): 748
histogram:
ms: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24+
%: 52 36 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2

C:\Program Files\SQLIO>sqlio -kW -t1 -s90 -dD -o2 -fsequential -b64 -BH -LS Testfile.dat
sqlio v1.5.SG
using system counter for latency timings, 3579545 counts per second
1 thread writing for 90 secs to file D:Testfile.dat
using 64KB sequential IOs
enabling multiple I/Os per thread with 2 outstanding
buffering set to use hardware disk cache (but not file cache)
using current size: 100 MB for file: D:Testfile.dat
initialization done
CUMULATIVE DATA:
throughput metrics:
IOs/sec: 473.17
MBs/sec: 29.57
latency metrics:
Min_Latency(ms): 0
Avg_Latency(ms): 3
Max_Latency(ms): 331
histogram:
ms: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24+
%: 8 18 4 42 26 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1

C:\Program Files\SQLIO>sqlio -kW -t1 -s90 -dD -o4 -fsequential -b64 -BH -LS Testfile.dat
sqlio v1.5.SG
using system counter for latency timings, 3579545 counts per second
1 thread writing for 90 secs to file D:Testfile.dat
using 64KB sequential IOs
enabling multiple I/Os per thread with 4 outstanding
buffering set to use hardware disk cache (but not file cache)
using current size: 100 MB for file: D:Testfile.dat
initialization done
CUMULATIVE DATA:
throughput metrics:
IOs/sec: 515.11
MBs/sec: 32.19
latency metrics:
Min_Latency(ms): 0
Avg_Latency(ms): 7
Max_Latency(ms): 350
histogram:
ms: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24+
%: 0 2 6 0 0 0 21 68 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1

C:\Program Files\SQLIO>sqlio -kW -t1 -s90 -dD -o8 -fsequential -b64 -BH -LS Testfile.dat
sqlio v1.5.SG
using system counter for latency timings, 3579545 counts per second
1 thread writing for 90 secs to file D:Testfile.dat
using 64KB sequential IOs
enabling multiple I/Os per thread with 8 outstanding
buffering set to use hardware disk cache (but not file cache)
using current size: 100 MB for file: D:Testfile.dat
initialization done
CUMULATIVE DATA:
throughput metrics:
IOs/sec: 516.03
MBs/sec: 32.25
latency metrics:
Min_Latency(ms): 0
Avg_Latency(ms): 14
Max_Latency(ms): 360
histogram:
ms: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24+
%: 0 0 0 2 3 3 0 0 0 0 0 0 0 32 44 14 0 0 0 0 0 0 0 0 1

C:\Program Files\SQLIO>sqlio -kW -t1 -s90 -dD -o16 -fsequential -b64 -BH -LS Testfile.dat
sqlio v1.5.SG
using system counter for latency timings, 3579545 counts per second
1 thread writing for 90 secs to file D:Testfile.dat
using 64KB sequential IOs
enabling multiple I/Os per thread with 16 outstanding
buffering set to use hardware disk cache (but not file cache)
using current size: 100 MB for file: D:Testfile.dat
initialization done
CUMULATIVE DATA:
throughput metrics:
IOs/sec: 519.12
MBs/sec: 32.44
latency metrics:
Min_Latency(ms): 1
Avg_Latency(ms): 30
Max_Latency(ms): 364
histogram:
ms: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24+
%: 0 0 0 0 0 0 0 0 1 1 3 1 0 0 0 0 0 0 0 0 0 0 0 0 92

C:\Program Files\SQLIO>sqlio -kW -t1 -s90 -dD -o32 -fsequential -b64 -BH -LS Testfile.dat
sqlio v1.5.SG
using system counter for latency timings, 3579545 counts per second
1 thread writing for 90 secs to file D:Testfile.dat
using 64KB sequential IOs
enabling multiple I/Os per thread with 32 outstanding
buffering set to use hardware disk cache (but not file cache)
using current size: 100 MB for file: D:Testfile.dat
initialization done
CUMULATIVE DATA:
throughput metrics:
IOs/sec: 524.43
MBs/sec: 32.77
latency metrics:
Min_Latency(ms): 13
Avg_Latency(ms): 60
Max_Latency(ms): 414
histogram:
ms: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24+
%: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 1 0 0 94

C:\Program Files\SQLIO>sqlio -kW -t1 -s90 -dD -o64 -fsequential -b64 -BH -LS Testfile.dat
sqlio v1.5.SG
using system counter for latency timings, 3579545 counts per second
1 thread writing for 90 secs to file D:Testfile.dat
using 64KB sequential IOs
enabling multiple I/Os per thread with 64 outstanding
buffering set to use hardware disk cache (but not file cache)
using current size: 100 MB for file: D:Testfile.dat
initialization done
CUMULATIVE DATA:
throughput metrics:
IOs/sec: 522.62
MBs/sec: 32.66
latency metrics:
Min_Latency(ms): 28
Avg_Latency(ms): 121
Max_Latency(ms): 507
histogram:
ms: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24+
%: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100

C:\Program Files\SQLIO>sqlio -kW -t1 -s90 -dD -o128 -fsequential -b64 -BH -LS Testfile.dat
sqlio v1.5.SG
using system counter for latency timings, 3579545 counts per second
1 thread writing for 90 secs to file D:Testfile.dat
using 64KB sequential IOs
enabling multiple I/Os per thread with 128 outstanding
buffering set to use hardware disk cache (but not file cache)
using current size: 100 MB for file: D:Testfile.dat
initialization done
CUMULATIVE DATA:
throughput metrics:
IOs/sec: 527.72
MBs/sec: 32.98
latency metrics:
Min_Latency(ms): 11
Avg_Latency(ms): 241
Max_Latency(ms): 597
histogram:
ms: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24+
%: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100

 

 

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