6.0.1

4 Click Edit.
5 Select Database.
6 In Maximum connections, type a number.
Increase this number if your vCenter Server system performs many operations frequently and
performance is critical. Decrease this number if the database is shared and connections to the database
are costly. Do not change this value unless one of these issues pertains to your system.
7 Select the Enabled check box next to Task cleanup to have vCenter Server periodically delete the
retained tasks.
8 (Optional) In Tasks retained for, type a value in days.
Information about tasks that are performed on this vCenter Server system is discarded after the
specied number of days.
9 Select the Enabled check box next to Event cleanup to have vCenter Server periodically clean up the
retained events.
10 (Optional) In Events retention, type a value in days.
Information about events for this vCenter Server system are discarded after the specied number of
days.
11 Click OK.
Verifying SSL Certificates for Legacy Hosts
You can congure vCenter Server to check the SSL certicates of hosts to which it connects. If you congure
this seing, vCenter Server and the vSphere Web Client check for valid SSL certicates before connecting to
a host for operations such as adding a host or making a remote console connection to a virtual machine.
vCenter Server 5.1 and vCenter Server 5.5 always connect to ESXi hosts using SSL thumbprint certicates.
Starting with vCenter Server 6.0, the SSL certicates are signed by VMware Certicate Authority by default.
You can instead use certicates from a third-party CA. Thumbprint mode is supported only for legacy hosts.
Procedure
1 In the vSphere Web Client, navigate to the vCenter Server instance.
2 Select the Manage tab.
3 Under , select General.
4 Click Edit.
5 Select SSL .
6 Determine the host thumbprint for each legacy host that requires validation.
a Log in to the direct console.
b Select View Support Information on the System Customization menu.
The thumbprint is displayed in the column on the right.
7 Compare the thumbprint you obtained from the host with the thumbprint listed in the vCenter Server
Seings dialog box.
8 If the thumbprints match, select the check box for the host.
Hosts that are not selected will be disconnected after you click OK.
9 Click OK.
Chapter 3 Configuring Hosts and vCenter Server
VMware, Inc. 47