| Sun StorageTek QFS Installation and Upgrade Guide |    
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| Sun StorageTek QFS Installation and Upgrade Guide |
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| C H A P T E R 2 |
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Preparing For Installation |
This chapter explains the system requirements for the Sun StorageTek QFS software and the tasks you must complete before you begin to install and configure your software.
This chapter contains the following sections:
This section outlines the hardware and software requirements for the Sun StorageTek QFS software.
The Sun StorageTek QFS software can be installed either on a Sun server based on UltraSPARC® technology or on a server based on AMD Opteron x64 technology.
There are additional requirements for the server that you want to use as the web server host for the File System Manager browser interface tool. For more information about these requirements, see Verifying Requirements for File System Manager.
The Sun StorageTek QFS software package runs in the following operating system environments:
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Note - This is the last version of Sun StorageTek QFS that will support SuSE Enterprise Linux 8. It will not be supported in the next version of the software. |
Before installation, verify the applicability of the hardware, the level of the operating system, and the patch release installed. To install the Sun StorageTek QFS software, you also must have root-level access to your system.
Repeat these steps for each host on which you want to install the Sun StorageTek QFS software.
1. Verify that your system has a CD-ROM drive or that it can access the release package at the Sun Download Center.
The Sun Download Center is at the following URL:
http://www.sun.com/software/downloads
2. Log in to your system as root.
You must have superuser access to install the software.
3. Verify your system's Solaris OS level.
The software relies on properly configured Solaris software at one of the following minimum release levels:
Sun Microsystems provides Solaris OS patches to customers with a maintenance contract by means of CD-ROM, anonymous FTP, and the Sun Microsystems SunSolve web site (http://sunsolve.sun.com).
To install a patch after you install the Sun StorageTek QFS release packages, load the CD-ROM or transfer the patch software to your system. Follow the instructions outlined in the Patch Installation Instructions and Special Install Instructions in the README file included in the patch or jumbo patch cluster.
The Sun StorageTek QFS software interoperates with many different hardware and software products from third-party vendors. Depending on your environment, you might need to upgrade other software or firmware before installing or upgrading the Sun StorageTek QFS package. Consult the Sun StorageTek QFS and Sun StorageTek Storage Archive Manager 4.6 Release Notes for information pertaining to library model numbers, firmware levels, and other compatibility information.
This section describes the system requirements for a Sun StorageTek QFS shared file system.
There must be at least one Solaris metadata server. If you want to be able to change the metadata server, there must be at least one other Solaris host that can become the metadata server; these other host systems are known as potential metadata servers. These servers must all be running on the same hardware platform, either SPARC or x64. You cannot mix server hardware platforms. In a Sun Cluster environment, all nodes included in a Sun StorageTek QFS shared file system are potential metadata servers.
The following are configuration recommendations with regard to metadata storage:
Ensure that your configuration meets the following operating system and hardware requirements:
Ensure that your configuration meets the following Sun StorageTek QFS requirements:
The system writes the preceding message to the metadata server's /var/adm/messages file.
If you plan to configure a Sun StorageTek QFS file system in a Sun Cluster environment, verify the following:
Ensure that you have between two and eight UltraSPARC or AMD x64 hosts to use as a cluster.
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Note - You cannot mix hardware architectures in a shared Sun StorageTek QFS Sun Cluster environment. All of the nodes must be either SPARC or AMD x64. |
Ensure that you have the following minimum software levels installed on each cluster node:
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Note - For AMD x64 configurations only Solaris 10 OS is supported with Sun Cluster 3.1 U4 08/05. |
Each node must have the same Sun Cluster software level and Sun Cluster patch collection. You must install Sun StorageTek QFS software packages on each node in the cluster that will host a Sun StorageTek QFS file system.
3. Ensure that you are familiar with how disks are used in a Sun Cluster environment.
In a Sun Cluster environment, the disk space used by the Sun StorageTek QFS file system must be configured on storage that is highly available and redundant. Ensure that you have a good understanding of the concepts in the Sun Cluster System Administration Guide for Solaris OS.
You should also be familiar with Sun Cluster operations. For information on Sun Cluster operations, see the following manuals:
Verifying Disk Space explains how much disk space to allow for the various directories that the file systems need.
5. Verify that you have the correct kinds of disk devices.
The types of disk devices you can use depend on the kind of file system you are configuring and whether you are using a volume manager, as follows:
QFS shared file system, use raw device identifier (DID) devices. In the scdidadm(1M) command output, these appear as /dev/did/* devices. The Sun Cluster nodes that share the file system must have access to each DID device through a host bus adapter (HBA) direct connection. All devices must be accessible to the file system from all nodes in the Sun Cluster environment that mount the Sun StorageTek QFS shared file system. For more information about DID devices, see the did(7) man page.
When you specify these devices in your mcf file, use the /dev/did devices from the scdidadm(1M) output. For more information about using scdidadm(1M), see Example: Verifying Devices and Device Redundancy.
If you want to configure a Sun StorEdge QFS highly available file system using raw devices, use Sun Cluster global devices. Use the output from the scdidadm(1M) command to determine the names of the global devices and substitute global for did when specifying the devices in the mcf file. Global devices are accessible from all nodes in a Sun Cluster environment, even if these devices are not physically attached to all nodes. If all nodes that have a hardware connection to the disk lose their connections, the remaining nodes cannot access the disk. File systems created on global devices are not necessarily highly available.
If you want to use a volume manager, use one of the following:
- Solstice DiskSuite volume manager. Such devices are located in /dev/md.
- VERITAS Volume Manager (VxVM). Such devices are located in /dev/vx.
Use scsetup(1M) to register volume-managed devices with the Sun Cluster framework prior to configuring your file system.
If you are unsure about your devices, issue the scdidadm(1M) command with its
-L option to determine which devices in your Sun Cluster environment are highly available. This command lists the paths of the devices in the DID configuration file. In the output from the scdidadm(1M) command, look for devices that have two or more DID devices listed with the exact same DID device number. Such devices are highly available in a Sun Cluster environment and can also be configured as global devices for a file system, even if they directly connect only to a single node.
I/O requests issued to global devices from a node other than the direct attached node are issued over the Sun Cluster interconnect. These single-node, global devices cease to be available when all nodes that have direct access to the device are unavailable.
There are two types of redundancy to consider in a Sun Cluster environment: storage redundancy and data path redundancy. The implications of these are as follows:
Storage redundancy can also be achieved by using software to support mirroring or RAID. This method, however, is not generally suitable for concurrent access from multiple hosts. Sun Cluster software supports mirroring of disk volumes (RAID-1 only) through its multi-owner diskset feature with Sun StorageTek QFS software and Solaris Volume Manager. This requires Sun Cluster software version 3.1 8/05 or later, Sun StorageTek QFS software version 4U4 or later, and the Solaris Volume Manager patch for the Solaris 10 OS, which is pending release. No other software redundancy is supported.
Traffic Manager software to enable data path redundancy. For more information, see the Sun StorageTek Traffic Manager Software Installation and Configuration Guide, or see the scsi_vhci(7D) man page.
To determine redundancy, consult the hardware documentation for your disk controllers and disk devices. You need to know whether the disk controller or disk devices that are reported by scdidadm(1M) are on redundant storage. For information, see the storage controller vendor's documentation set and view the current controller configuration.
After the set of highly available devices has been determined, check for device redundancy. All devices must employ mirroring (RAID-1) or striping (RAID-5) to ensure continued operation in the event of a failure, as follows:
For more information about volume sizing and redundancy configurations, see the Solaris Volume Manager Administration Guide or your VERITAS Volume Manager documentation.
This example shows how to use output from the scdidadm(1M) command to find the devices in the Sun Cluster environment, determine which devices are highly available, and then determine which devices are redundant.
CODE EXAMPLE 2-1 shows the scdidadm(1M) Sun Cluster command. This example uses the -L option for this command to list paths of the devices in the DID configuration file for all nodes. In the output from the scdidadm(1M) command, look for output that shows a device that is visible from two or more nodes and that has the same World Wide Name. These are global devices.
CODE EXAMPLE 2-1 uses Sun StorageTek T3 arrays in a RAID-5 configuration. The output shows that you can use devices 4 through 9 for configuring the disk cache for a file system.
The scdidadm(1M) command in this example lists device /dev/rdsk/c6t50020F2300004921d0, which is DID device /dev/did/rdsk/d5 or global device /dev/global/rdsk/d5. This device has a two partitions (0 and 1), each of which yields 212152320 blocks for use by a Sun StorEdge QFS highly available file system as /dev/global/rdsk/d5s0 and /dev/global/rdsk/d5s1.
You need to issue the scdidadm(1M) and format(1M) commands for all devices to be configured for use by the Sun StorEdge QFS highly available file system.
Version 4U4 of the software added support for multi-owner disksets in Solaris Volume Manager for the Sun Cluster environment to obtain redundancy with shared Sun StorageTek QFS file systems. If you are using an earlier version of the software, you cannot use a volume manager to construct redundant devices to support a Sun StorageTek QFS shared file system.
For more information about configuring devices that are on redundant storage, see your Sun Cluster software installation documentation.
For optimal file system performance, the metadata and file data should be accessible through multiple interconnects and multiple disk controllers. In addition, plan to write file data to separate, redundant, highly available disk devices.
Plan to write your file system's metadata to RAID-1 disks. You can write file data to either RAID-1 or RAID-5 disks.
If are configuring a Sun StorEdge QFS highly available file system and you are using a volume manager, the best performance is realized when the file system is striping data over all controllers and disks, rather than when the volume manager performs the striping. You should use a volume manager only to provide redundancy.
The File System Manager browser interface is used to configure, control, monitor, or reconfigure a Sun StorageTek QFS environment using a graphical web browser interface.
You can install the File System Manager software in one of the following configurations:
After the File System Manager software is installed, you can invoke File System Manager from any machine on the network that is allowed access to its web server.
The host upon which you are configuring the File System Manager software must meet the requirements described in the following subsections:
The minimum hardware requirements for the File System Manager software are:
Ensure that your installation meets the following browser requirements:
7.1 / Mozilla 1.7 / Firefox 1.5 on the Solaris OS or Microsoft Windows 98 SE, ME, 2000, or XP operating system
technology in your browser. In Mozilla, for example, click through the following menus to get to a panel showing whether JavaScript technology is enabled: Edit, Preferences, Advanced, and Scripts & Plugins.
Make sure that one of the following minimum levels of the Solaris OS is installed on the web server:
The File System Manager installation packages include revisions of the following software at the minimum levels indicated:
During the installation procedure, you will be asked to answer questions about what you currently have installed. Based on your answers, the installation software can install the correct revisions for you if the compatible revisions of these software packages are not present.
This section describes how to estimate the size of disk cache needed for creation and management of files and directories in your file system.
The Sun StorageTek QFS software requires a certain amount of disk cache (file system devices) in order for it to create and manage data files and directories. An ma-type file system requires at least two disk devices or partitions, one for file data and one for metadata. An ms-type file system only requires one partition, on which both data and metadata are saved. Multiple disk devices or partitions increase I/O performance. See the Sun StorageTek QFS File System Configuration and Administration Guide for a detailed description of the two file system types.
The disk devices or partitions do not require any special formatting. You might see better performance if you configure multiple devices across multiple interfaces (HBAs) and disk controllers.
The disks must be connected to the server through a Fibre Channel or SCSI controller. You can specify individual disk partitions for a disk, or you can use the entire disk as a disk cache. The software supports disk arrays, including those under the control of volume management software, such as Solstice DiskSuite, Solaris Volume Manager, and other volume management software products.
Before creating your first file system, you should familiarize yourself with Sun StorageTek QFS file system layout possibilities. Describing all the aspects of Sun StorageTek QFS file systems is beyond the scope of this manual. For information on volume management, file system layout, and other aspects of file system design, see the Sun StorageTek QFS File System Configuration and Administration Guide.
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Note - Extensible Firmware Interface (EFI) labels are required on all shared disks if you are using a Sun StorageTek QFS shared file system configuration that contains both the Solaris 10 OS on x64 platforms and the Solaris 9 or Solaris 10 OS on SPARC platforms. See Configuring EFI Labels for Shared x64 and SPARC Volumes for information on relabeling disks. |
1. Estimate the minimum disk cache requirements for Sun StorageTek QFS software (ma file systems).
Use the following information to estimate the metadata cache requirements. The metadata cache must have enough space to contain the following data:
2. Enter the format(1M) command to verify that you have sufficient disk cache space.
Use the format(1M) command if you are installing a Sun StorageTek QFS file system on a single server or if you are installing a Sun StorageTek QFS file system as a local file system on a Sun Cluster node.
The format(1M) command shows how the disks are partitioned and the size of each partition.
The software requires a disk cache consisting of RAID devices, a JBOD (just a bunch of disks) collection, or both. It also requires a certain amount of disk space in the
/ (root), /opt, and /var directories. The actual amount needed varies depending on the packages you install. TABLE 2-1 shows the minimum amount of disk space required in these various directories.
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Note - To see minimum disk space requirements for the Sun StorageTek SAM software, see the Sun StorageTek Storage Archive Manager Installation and Upgrade Guide. |
The following procedure shows how to verify whether there is enough disk space on your system to accommodate the SUNWsamfsu and SUNWsamfsr software installation packages.
1. Enter the following command to verify that there are at least 2 Mbytes available in the avail column for the / directory.
2. Enter the following command to verify that there are at least 8 Mbytes in the avail column for the /opt directory.
# df -k /opt Filesystem kbytes used avail capacity Mounted on /dev/dsk/c0t1dos4 192423 59006 114177 35% /opt |
3. Verify that there is at least 1 Mbyte available in the /var directory.
A quantity of 30 Mbytes or more is recommended to allow for the growth of log files and other system files.
4. If there is not enough room for the software under each directory, repartition the disk to make more space available to each file system.
To repartition a disk, see your Sun Solaris system administration documentation.
Make sure that you have a copy of the release software. You can obtain the Sun StorageTek QFS software from the Sun Download Center or on a CD-ROM. Contact your authorized service provider (ASP) or your Sun sales representative if you have questions on obtaining the software.
After the release, upgrade patches are available from the following URL:
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1. Enter the following URL in your browser:
http://www.sun.com/software/download/sys_admin.html
2. Click the Sun StorageTek QFS software package you want to download.
3. Follow the instructions on the web site for downloading the software.
You must agree to all binary and right-to-use (RTU) software license agreements before installing Sun StorageTek QFS software. Beginning with version 4, update 3, of the software, all media kits and software license options are delivered online, and license keys are no longer required.
Read this section if you want to monitor your configuration through Simple Network Management Protocol (SNMP) software.
You can configure the Sun StorageTek QFS software to notify you when potential problems occur in its environment. The SNMP software manages information exchange between network devices such as servers, automated libraries, and drives. When the Sun StorageTek QFS software detects potential problems in its environment, it sends information to a management station, which enables you to monitor the system remotely.
The management stations you can use include the following:
Management Center (Sun MC)
Remote Services Net Connect
If you want to enable SNMP traps, make sure that the management station software is installed and operating correctly before installing the Sun StorageTek QFS software. Refer to the documentation that came with your management station software for information on installation and use.
The types of problems, or events, that the Sun StorageTek QFS software can detect are defined in the Sun StorageTek QFS Management Information Base (MIB). The events include errors in configuration, tapealert(1M) events, and other atypical system activity. For complete information on the MIB, see /var/snmp/mib/SUN-SAM-MIB.mib after the packages are installed.
The Sun StorageTek QFS software supports the TRAP SNMP (V2c) protocol. The software does not support GET-REQUEST, GETNEXT-REQUEST, and SET_REQUEST.
| Sun StorageTek QFS Installation and Upgrade Guide | 819-7936-10 |
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Copyright © 2007, Sun Microsystems, Inc. All Rights Reserved.
To Verify the Environment
