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HP StoreOnce 6500 HP StoreOnce VSA Deployment and Configuration Guide (TC458-9 - Page 52

Performance problems, VSA writes and reads are slower in ESXi SAN environments

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Performance problems A number of factors can negatively affect StoreOnce VSA performance in the ESXi environment. Always make sure the virtual resources of the ESXi servers on which StoreOnce VSAs are deployed and the datastores used by StoreOnce VSAs are not in a over-committing state. VSA writes and reads are slower in ESXi SAN environments Cause The memory and CPU resources allocated to the StoreOnce VSA may be less than the minimum requirements of the VSA. Solution Make sure the VSA virtual resources are set to meet the minimum requirements of the VSA, see StoreOnce VSA system requirements (page 5). Also, make sure the virtual resources assigned to the VSA are reserved, see Increasing virtual memory for optimal performance (page 40). To make sure the ESXi SAN environment is set up correctly, refer to the VMware troubleshooting guides. 52 Troubleshooting

Section	Page
Contents	3
1 Introduction	5
Product description	5
StoreOnce VSA system requirements	5
Supported datastores	6
VMFS3.MaxHeapSizeMB setting	6
AMD support	6
Before you start deployment	8
StoreOnceVSA files required for deployment	9
Deployment overview	10
Logging on to the StoreOnce VSA after deployment	11
HPresetpassword account	11
For more information	11
HP StoreOnce documentation	11
HP StoreOnce Enterprise Manager documentation	11
vSphere documentation	12
Licensing	12
StoreOnce serial numbers	12
To redeem a purchased license	13
2 Deployment using HP StoreOnce Enterprise Manager (SEM)	14
Introduction	14
Before you start	14
Deployment process	15
To increase storage capacity using StoreOnce Enterprise Manager	21
To apply the license using SEM	24
3 Deployment using vSphere client	26
Introduction	26
Before you start	26
Deployment process	26
To create virtual disks for the StoreOnce VSA	32
To create a 1 TB virtual disk	33
To prepare and add storage using the StoreOnce CLI	37
To apply the license using StoreOnce CLI commands	38
To amend the network configuration after deployment	38
To check the current configuration	38
To run the net set wizard	38
4 Increasing virtual memory for optimal performance	40
5 Troubleshooting	43
Deployment Problems	44
StoreOnce VSA power-on fails after deployment	44
GUI displays blank and ‘system show status’ shows Service Set is unavailable / in a Failed to Start state	44
Deployment of StoreOnce VSA fails	45
StoreOnce VSA deployment through SEM fails after 98% progress	45
StoreOnce VSA deployment through SEM is 100% complete, however subsequent configuration stages fail	46
StoreOnce VSA power-on fails	46
Applying network settings fails	46
Storage addition problems	47
hardware discover storage / hardware prepare storage StoreOnce CLI command fails	47
Error running system show status	48
Data vdisks not recognized when executing the StoreOnce CLI storage addition commands	48
License alerts and issues	49
StoreOnce Instant-on license not installed alert	49
StoreOnce Instant-on license expired alert	49
Backup jobs fail with backup target size full error with Storage Report on GUI showing Free Space and Used Space as 0 GB	49
License addition fails with error “Invalid Device ID”	49
Instant-on license validity or number of days remaining is reduced	50
The VSA powers off after every power-on	50
License transfer is required	50
Network problems	51
Unable to access VSA over the network when default port —eth0 goes down	51
Performance problems	52
VSA writes and reads are slower in ESXi SAN environments	52
Power issues	53
The VSA service set goes down and file system becomes read-only	53
Backup jobs on VTLs fail after power shutdown	53
Miscellaneous issues	54
Operations such as power-off, power-on, and storage addition on the StoreOnce VSA may fail when using vSphere with the message: <File [unspecified file name] not found>	54
All VSAs/VMs on the ESXi server become unresponsive and all operations on StoreOnce VSAs fail	54
Emails are not sent to configured accounts	54
Adding/deleting replication targets fail with error “Maximum no. of sessions reached”	54
Time settings are reset when the StoreOnce VSA is rebooted	55
A fifth VT library gets created in the StoreOnceVSA automatically when the iSCSI initiator attached to the StoreOnce VSA is reset or refreshed	55
Logs for SEM and the StoreOnce VSA	55
Managing and resetting the password for the HPresetpassword account	55
To change the password for the HPresetpassword account	56
To reset the password for the local Admin user	56
6 Support and other resources	57
Contacting HP	57
Subscription Service	57
Related information	57
Websites	57
Typographic conventions	58