Home > Articles > Operating Systems, Server > Solaris

  • Print
  • + Share This
Like this article? We recommend

Configuring Solaris Volume Manager Software in the Sun Cluster 3.0 Environment

In this section, we present a sample configuration that consists of two nodes, phys-node-1 and phys-node-2. Each node has two internal drives and is connected to two hardware RAID devices. On each disk array, two logical unit numbers (LUNs) are created. Sun Cluster 3.0 software is installed on both nodes, and a quorum device is chosen. The two LUNS on the first array are known in the cluster as /dev/did/dsk/d3 and /dev/did/dsk/d4. The LUNs on the second array are /dev/did/dsk/d5 and /dev/did/dsk/d6. We create a diskset, nfsds, that contains one mirror, with two submirrors. On top of the mirror, we create four soft partitions that can be used to create file systems. Because this setup has two storage arrays, we must configure mediators.

To Configure Solaris Volume Manager Software on All Cluster Nodes

  1. Create local replicas.

    Because Solaris Volume Manager software is part of the Solaris 9 OE distribution, you do not have to install it separately. However, for the software to operate, it must have at least one local replica. The preferred minimum is three replicas. Use the following commands to create the local state database replicas:

    # metadb -af -c 2 c1t0d0s7
    # metadb -a -c 2 c2t0d0s7

    Document the commands you use to create the local state database replicas and keep the information offline so you can refer to it if you have to recreate the configuration.

  2. Mirror the boot disk.

    We highly recommend that you mirror boot disks on all nodes. The procedure to do this is the same on a cluster node as it is on a noncluster node, with the following exceptions:

    • After installing the cluster, the device to mount in /etc/vfstab for the global device's file system changes from a logical Solaris OE name (c#t#d#s#) to a DID name. However, you should use the logical Solaris OE name (c#t#d#s#) as a building block for the first submirror.

    • The volume containing the /global/.devices/node@nodeid file system should have a unique name on each cluster node.

      For example, if /dev/md/dsk/d91 on node1 is mounted globally under /global/.devices/node@node1, create a volume /dev/md/dsk/d92 on node2 to be mounted under /global/.devices/node@node2. (The device to mount should be unique in the mnttab maintained by the Solaris OE kernel. Because the global device's file systems on each node are mounted globally and, therefore, appear in the mnttab on both nodes, they should have different devices to mount in /etc/vfstab.)

    The sdmsetup script, described in the Sun BluePrints OnLine article "Configuring Boot Disks With Solaris Volume Manager Software," is available from the Sun BluePrints OnLine Web site at:


    This script is cluster-aware and helps automate the mirroring and cloning of boot disks of cluster nodes.

  3. [Optional] Change the interval of the mdmonitord daemon on all the nodes. Edit the /etc/rc2.d/S95svm.sync script to add a time interval for periodic checking as follows:

    if [ -x $MDMONITORD ]; then
    $MDMONITORD -t 3600 error=$? case $error in 0) ;; *) echo "Could not start $MDMONITORD. Error $error." ;; esac
  4. Restart the mdmonitord daemon to make the changes effective as follows.:

    # /etc/rc2.d/S95svm.sync stop
    # /etc/rc2.d/S95svm.sync start

To Create Disksets

  1. Document the commands you use to create the disksets and to add the disks, and keep the information offline.

  2. Define the diskset and the nodes that can master the diskset as follows:

    # metaset -s nfsds -a -h phys-node-1 phys-node-2

    Only run the metaset command on one node. The metaset command issues rpc calls to the other node to create an entry in the other node's local replicas for this set.

  3. Add drives to the diskset using their fully qualified DID names as follows:

    # metaset -s nfsds -a /dev/did/rdsk/d3 /dev/did/rdsk/d4
    /dev/did/rdsk/d5 /dev/did/rdsk/d6

    Again, rpc calls are made to the other node to ensure that it also has the necessary information in its local state replicas.

  4. When Solaris Volume Manager software creates disksets, it automatically tells the cluster software to create an entry in the cluster database for the diskset. This entry is called a device group, which you can check using the following command:

    # scstat -D
  5. Configure mediators on each node, as follows:

    # metaset -s nfsds -a -m phys-node-1
    # metaset -s nfsds -a -m phys-node-2
  6. Check the status of the mediators as follows:

    # medstat -s nfsds

To Create Volumes and File Systems

  1. Create the following volumes.

    • A mirrored volume composed of two striped submirrors. Each stripe is composed of the two slice 0s of the LUN in each storage array.

    • Four soft partitions on top of this mirror.

      # metainit nfsds/d1 1 2 /dev/did/rdsk/d3s0 
      # metainit nfsds/d2 1 2 /dev/did/rdsk/d5s0 
      # metinit nfsds/d0 -m nfsds/d1
      # metattach nfsds/d0 nfsds/d2
      # metainit nfsds/d10 -p nfsds/d0 200m
      # metainit nfsds/d11 -p nfsds/d0 200m
      # metainit nfsds/d12 -p nfsds/d0 200m
      # metainit nfsds/d13 -p nfsds/d0 200m
  2. Create an /etc/lvm/md.tab file on both nodes. Keep a copy of this file offline so you can use it to recreate the configuration, if it becomes necessary to do so.

    1. On the node that is the current primary of the diskset, supply the following commands:

      # metastat -s nfsds -p >> /etc/lvm/md.tab
    2. On the other node, supply the following commands:

      # metaset -s nfsds -p | tail +2 >> /etc/lvm/md.tab
  3. Create file systems on the logical partitions and mount them globally.

    1. On one node, create the file system as shown here:

      # newfs /dev/md/nfsds/rdsk/d10
      # newfs /dev/md/nfsds/rdsk/d11
      # newfs /dev/md/nfsds/rdsk/d12
      # newfs /dev/md/nfsds/rdsk/d13
    2. On all nodes, create mount points as follows:

      # mkdir /global/nfsd/fs1 /global/nfsd/fs2 /global/nfsd/fs3 /global/fs4

      On all nodes, put following entries in /etc/vfstab as shown here:

      /dev/md/nfsds/dsk/d10 /dev/md/nfsds/rdsk/d10 
             /global/nfsd/fs1 ufs 2
      yes global
      /dev/md/nfsds/dsk/d11 /dev/md/nfsds/rdsk/d11 
             /global/nfsd/fs2 ufs 2
      yes global
      /dev/md/nfsds/dsk/d12 /dev/md/nfsds/rdsk/d12 
             /global/nfsd/fs3 ufs 2
      yes global
      /dev/md/nfsds/dsk/d13 /dev/md/nfsds/rdsk/d13 
             /global/nfsd/fs4 ufs 2
      yes global
    3. On one node, mount the global file systems as follows:

      # mount /global/nfsd/fs1
      # mount /global/nfsd/fs2
      # mount /global/nfsd/fs3
      # mount /global/nfsd/fs4
    4. Test the configuration.

      1. On one node, run the following commands:

        # metaset
        # scstat -D
      2. On all nodes, run the following command:

        # df -k
  • + Share This
  • 🔖 Save To Your Account

InformIT Promotional Mailings & Special Offers

I would like to receive exclusive offers and hear about products from InformIT and its family of brands. I can unsubscribe at any time.


Pearson Education, Inc., 221 River Street, Hoboken, New Jersey 07030, (Pearson) presents this site to provide information about products and services that can be purchased through this site.

This privacy notice provides an overview of our commitment to privacy and describes how we collect, protect, use and share personal information collected through this site. Please note that other Pearson websites and online products and services have their own separate privacy policies.

Collection and Use of Information

To conduct business and deliver products and services, Pearson collects and uses personal information in several ways in connection with this site, including:

Questions and Inquiries

For inquiries and questions, we collect the inquiry or question, together with name, contact details (email address, phone number and mailing address) and any other additional information voluntarily submitted to us through a Contact Us form or an email. We use this information to address the inquiry and respond to the question.

Online Store

For orders and purchases placed through our online store on this site, we collect order details, name, institution name and address (if applicable), email address, phone number, shipping and billing addresses, credit/debit card information, shipping options and any instructions. We use this information to complete transactions, fulfill orders, communicate with individuals placing orders or visiting the online store, and for related purposes.


Pearson may offer opportunities to provide feedback or participate in surveys, including surveys evaluating Pearson products, services or sites. Participation is voluntary. Pearson collects information requested in the survey questions and uses the information to evaluate, support, maintain and improve products, services or sites, develop new products and services, conduct educational research and for other purposes specified in the survey.

Contests and Drawings

Occasionally, we may sponsor a contest or drawing. Participation is optional. Pearson collects name, contact information and other information specified on the entry form for the contest or drawing to conduct the contest or drawing. Pearson may collect additional personal information from the winners of a contest or drawing in order to award the prize and for tax reporting purposes, as required by law.


If you have elected to receive email newsletters or promotional mailings and special offers but want to unsubscribe, simply email information@informit.com.

Service Announcements

On rare occasions it is necessary to send out a strictly service related announcement. For instance, if our service is temporarily suspended for maintenance we might send users an email. Generally, users may not opt-out of these communications, though they can deactivate their account information. However, these communications are not promotional in nature.

Customer Service

We communicate with users on a regular basis to provide requested services and in regard to issues relating to their account we reply via email or phone in accordance with the users' wishes when a user submits their information through our Contact Us form.

Other Collection and Use of Information

Application and System Logs

Pearson automatically collects log data to help ensure the delivery, availability and security of this site. Log data may include technical information about how a user or visitor connected to this site, such as browser type, type of computer/device, operating system, internet service provider and IP address. We use this information for support purposes and to monitor the health of the site, identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents and appropriately scale computing resources.

Web Analytics

Pearson may use third party web trend analytical services, including Google Analytics, to collect visitor information, such as IP addresses, browser types, referring pages, pages visited and time spent on a particular site. While these analytical services collect and report information on an anonymous basis, they may use cookies to gather web trend information. The information gathered may enable Pearson (but not the third party web trend services) to link information with application and system log data. Pearson uses this information for system administration and to identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents, appropriately scale computing resources and otherwise support and deliver this site and its services.

Cookies and Related Technologies

This site uses cookies and similar technologies to personalize content, measure traffic patterns, control security, track use and access of information on this site, and provide interest-based messages and advertising. Users can manage and block the use of cookies through their browser. Disabling or blocking certain cookies may limit the functionality of this site.

Do Not Track

This site currently does not respond to Do Not Track signals.


Pearson uses appropriate physical, administrative and technical security measures to protect personal information from unauthorized access, use and disclosure.


This site is not directed to children under the age of 13.


Pearson may send or direct marketing communications to users, provided that

  • Pearson will not use personal information collected or processed as a K-12 school service provider for the purpose of directed or targeted advertising.
  • Such marketing is consistent with applicable law and Pearson's legal obligations.
  • Pearson will not knowingly direct or send marketing communications to an individual who has expressed a preference not to receive marketing.
  • Where required by applicable law, express or implied consent to marketing exists and has not been withdrawn.

Pearson may provide personal information to a third party service provider on a restricted basis to provide marketing solely on behalf of Pearson or an affiliate or customer for whom Pearson is a service provider. Marketing preferences may be changed at any time.

Correcting/Updating Personal Information

If a user's personally identifiable information changes (such as your postal address or email address), we provide a way to correct or update that user's personal data provided to us. This can be done on the Account page. If a user no longer desires our service and desires to delete his or her account, please contact us at customer-service@informit.com and we will process the deletion of a user's account.


Users can always make an informed choice as to whether they should proceed with certain services offered by InformIT. If you choose to remove yourself from our mailing list(s) simply visit the following page and uncheck any communication you no longer want to receive: www.informit.com/u.aspx.

Sale of Personal Information

Pearson does not rent or sell personal information in exchange for any payment of money.

While Pearson does not sell personal information, as defined in Nevada law, Nevada residents may email a request for no sale of their personal information to NevadaDesignatedRequest@pearson.com.

Supplemental Privacy Statement for California Residents

California residents should read our Supplemental privacy statement for California residents in conjunction with this Privacy Notice. The Supplemental privacy statement for California residents explains Pearson's commitment to comply with California law and applies to personal information of California residents collected in connection with this site and the Services.

Sharing and Disclosure

Pearson may disclose personal information, as follows:

  • As required by law.
  • With the consent of the individual (or their parent, if the individual is a minor)
  • In response to a subpoena, court order or legal process, to the extent permitted or required by law
  • To protect the security and safety of individuals, data, assets and systems, consistent with applicable law
  • In connection the sale, joint venture or other transfer of some or all of its company or assets, subject to the provisions of this Privacy Notice
  • To investigate or address actual or suspected fraud or other illegal activities
  • To exercise its legal rights, including enforcement of the Terms of Use for this site or another contract
  • To affiliated Pearson companies and other companies and organizations who perform work for Pearson and are obligated to protect the privacy of personal information consistent with this Privacy Notice
  • To a school, organization, company or government agency, where Pearson collects or processes the personal information in a school setting or on behalf of such organization, company or government agency.


This web site contains links to other sites. Please be aware that we are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of each and every web site that collects Personal Information. This privacy statement applies solely to information collected by this web site.

Requests and Contact

Please contact us about this Privacy Notice or if you have any requests or questions relating to the privacy of your personal information.

Changes to this Privacy Notice

We may revise this Privacy Notice through an updated posting. We will identify the effective date of the revision in the posting. Often, updates are made to provide greater clarity or to comply with changes in regulatory requirements. If the updates involve material changes to the collection, protection, use or disclosure of Personal Information, Pearson will provide notice of the change through a conspicuous notice on this site or other appropriate way. Continued use of the site after the effective date of a posted revision evidences acceptance. Please contact us if you have questions or concerns about the Privacy Notice or any objection to any revisions.

Last Update: November 17, 2020