Dell PowerVault 200S Specifikace stáhnout pdf (Strana 25)

Principled Technologies, Inc.: Dell PowerVault MD3000i high-availability testing on

Windows Server 2008 R2 and Hyper-V

Installing and configuring Iometer

1. Download the Iometer package from www.iometer.org.

2. Uncompress the files, and copy Iometer.exe, Dynamo.exe, and iometer.icf to c:\iometer.

3. Open Iometer.exe.

4. Verify that for Disk Targets, the # of Outstanding I/Os is set to the appropriate value.

5. Under Results Display, make sure that Iometer has selected Start of Test, and set the update frequency

to ∞.

6. Under Test Setup, set the Run Time to 30 minutes and the Ramp Up Time to 0 seconds.

7. Exit Iometer.

Setting up the individual Iometer workloads

We set up Iometer using the test patterns shown in Figure 15 on both file servers. The test patterns defined the

payload size, the percent read, percent write, percent random, percent sequential, and outstanding I/Os. In

addition, we used the following settings for each test:

• Iometer 2006.07.27

• Burstiness

o Transfer Delay: 0ms

o Burst Length: 1 I/O

• Align I/Os on: Sector Boundaries

• Reply Size: No Reply

• 5GB dataset

• Windows Server 2008 R2

• 1 User = .60-.75 IOPS

• 200 users: 1 Outstanding I/O (~140 IOPS)

• 500 users: 2 Outstanding I/O’s (~350 IOPS)

• IOPS estimation based on data from Microsoft’s File Server Capacity Tool (FSCT)

Figure 15 shows the following access specification we used to simulate file server activity:

Percentage of

access specification

Transfer size request (KB) Percentage of reads Percentage random

10 0.5 80 100

5 1.0 80 100

5 2.0 80 100

60 4.0 80 100

2 8.0 80 100

4 16.0 80 100

4 32.0 80 100

10 64.0 80 100

Figure 15: The access specification we used to simulate file server activity.

Installing and configuring the mail client

To create the mail client, you must install several software components. Before following these instructions, make

sure to statically assign an IP address for the client, and to then plug that port into the system under test. This

allows the client to join the Active Directory domain. We followed this process for each installation:

Joining the domain

1. Select StartÆControl PanelÆNetwork ConnectionsÆLocal Area Connection.

2. Click Properties.

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