Manuale d’uso / di manutenzione del prodotto IS0054604-00 A del fabbricante Q-Logic
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IS0054604-00 A User ’ s Guide IOCTL to Open-iSCSI Interface QLogic 4000 Series iSCSI Adapters and 8200 Series Converged Network Adapters.
ii IS0054604-00 A User ’s Gu ide—IOCTL to Open- iSCSI Interf ace QLogic 4000 Series iSCSI Adapters and 820 0 Series Converged Networ k Adapters Information fu rnished in this manual is believe d to be accurate and reliable.
IS0054604-00 A iii T able of Content s Preface What is in This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
iv IS0054604-00 A User ’s Gu ide—IOCTL to Open-iSCSI Interfac e QLogic 4000 Series iSCSI Adapters and 820 0 Series Converged Networ k Adapters Boot T arget Login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Default Behavior on RHEL 6.
IS0054604-00 A v User ’s Guide—IOCTL to Open-iSCSI Interface QLogic 4000 Series iSCSI Adapter s and 8200 Series Conver ged Network Adap ters 1-5 Open-iSCSI T arget Login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
vi IS0054604-00 A User ’s Gu ide—IOCTL to Open-iSCSI Interfac e QLogic 4000 Series iSCSI Adapters and 820 0 Series Converged Networ k Adapters 2-41 Selecting the Installation T ype . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IS0054604-00 A vii Preface S tarting with Red Hat ® Enterprise Linux ® (RHEL™) 6 .2 and Novell ® SUSE ® Linux Enterprise Server (SLES ® ) 1 1 SP2, the QLogic qla4xxx driver (iSCSI driver for Linux) supports the Open-iSCSI tool iscsiadm .
Preface Related Materials viii IS0054604-00 A Related Materials For additional informat ion, refer to the following: T echnical Note, 2.10. Kernel http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_L inux/6/html/6.2_T echnical_Notes/kernel_issues.
Preface T echnical Support IS0054604-00 A ix Te x t i n ital ics indicates terms, emphasis, va riables, or d ocument titles: For a complete listing of license agreement s, refer to the QLogic Software End User License Agreement .
Preface T echnical Support x IS0054604-00 A T raining QLogic Global T raining maintains a W eb site at www .qlogictraining.com offering online and instructor-led trainin g for all QLogic products .
IS0054604-00 A 1-1 1 Legacy vs. Open-iSCSI This section describes the major dif ferenc es between the legacy driver which has an IOCTL-based interface for user space app lication communications, and the Open-iSCSI model.
1–Legacy vs. Open-iSCSI Summary of Major Dif ferences 1-2 IS0054604-00 A Summary of Major Differences T able 1-1 summarizes the major dif ferences between the legacy IOCTL-based and Open-iSCSI models. T able 1-1. Differences Between IOCTL and Open -iSCSI Driver Models Serial No.
1–Legacy vs . Open-iSCSI Summary of Ma jor Dif ferences IS0054604-00 A 1-3 3 Boot T arget During driver load, the firmware performs auto discovery and login to the boot ta rgets based on the target informatio n saved in the Flash, and posts an AEN to inform the driver of the tar gets and th eir login status.
1–Legacy vs. Open-iSCSI Summary of Major Dif ferences 1-4 IS0054604-00 A 6 How to view sessions logged in Qlogic applicat ion a Use the following command: iscsiadm -m session 7 T arget scan- ning Login and t arget scanning is done in kernel sp ace as follows: 1.
1–Legacy vs . Open-iSCSI Summary of Ma jor Dif ferences IS0054604-00 A 1-5 9 Dynamic map- ping/unmap- ping of LUNs added to the back-end stor- age The driver handles the following check condi- tion/.
1–Legacy vs. Open-iSCSI Summary of Major Dif ferences 1-6 IS0054604-00 A 12 Flash DDBs with Open-iSCSI model driver Not applicable The Open -iSCSI driver will support existing Flash DDB entries in the adapter . iscsiadm has no control over these sessions.
1–Legacy vs . Open-iSCSI Functional Flows IS0054604-00 A 1-7 Functional Flows This section provides functional flow diagr ams for discovery , target login, an d session recovery .
1–Legacy vs. Open-iSCSI Functional Flows 1-8 IS0054604-00 A Discovery Figures 1-1 through 1-3 provide functional flow diagra ms of the disco very process for IOCTL and Open-iSCSI. Figure 1-1. Noninteractive Di scovery in IOCTL Mode (Legacy) Figure 1-2.
1–Legacy vs . Open-iSCSI Functional Flows IS0054604-00 A 1-9 Figure 1-3. Open-iSCSI Discovery.
1–Legacy vs. Open-iSCSI Functional Flows 1-10 IS0054604-00 A T arget Login Figures 1-4 through 1-5 provide functional flow diagrams of the targ et login process for IOCTL and Open-iSCSI.
1–Legacy vs . Open-iSCSI Functional Flows IS0054604-00 A 1-1 1 Session Recovery Figures 1-6 through 1-7 provide functional flow diagrams of the session recovery process for IOCTL and Open-iSCSI.
1–Legacy vs. Open-iSCSI Functional Flows 1-12 IS0054604-00 A Figure 1-7. Open-iSCSI Session Recovery.
1–Legacy vs . Open-iSCSI S tate T ransition Diagrams IS0054604-00 A 1-13 S t ate T ransition Diagrams Figures 1-8 through 1-9 provide st ate transition diagrams for IOCTL and Open-iSCSI. These diagrams illustrate the management of the session/t arget life cycle.
1–Legacy vs. Open-iSCSI S tate T ransition Diagrams 1-14 IS0054604-00 A Figure 1-9. Open-iSCSI S tate T ransition Diagram.
IS0054604-00 A 2-1 2 Boot from SAN This section provides information on c onfigurin g Boot from SAN (BFS) when migrating to the Open-iSCSI model. This section includes the following top ics: “Ne.
2–Boot from SAN New Parameter: ql4disablesysfsboot 2-2 IS0054604-00 A New Parameter: ql4disablesysfsboot The ql4disablesysfsboot p arameter is a new driver module parameter for the Open-iSCSI based driver model (it is not supported by the ioctl based driver).
2–Boot from SAN Boot from SAN Configuration Matrix IS0054604-00 A 2-3 T able 2-1. Boot from SAN Configuration Matrix ql4xdisablesysfsboot = 0 ql4xdisablesysfsboot = 1 Boot T arget as send target (ST.
2–Boot from SAN Configuring Bo ot from SAN 2-4 IS0054604-00 A Configuring Boot from SAN Boot from SAN Inst allation on SLES 1 1 SP2 and RHEL 6.2 T o configure the adapter for BFS on SLES 1 1 SP2 or RHEL 6.2, follow these steps: 1. While the system is booting up, pre ss CTRL+Q to enter Fast!UTIL on the iSCSI BIOS banner , as shown in Figure 2-1 .
2–Boot from SAN Configuring Boot from SAN IS0054604-00 A 2-5 2. Once in, select the port to be configured, a s shown in Figure 2-2 . Figure 2-2. Selecting the Port to Be Configured 3. Select Configuration Settings , as shown in Figure 2-3 . Figure 2-3.
2–Boot from SAN Configuring Bo ot from SAN 2-6 IS0054604-00 A 4. Select Host Adapter Settings , as shown in Figure 2-4 . Figure 2-4. Selecting the Ho st Adapter Settings Option 5. Select the Initiator IP Settings field, as shown in Figure 2-5 . Figure 2-5.
2–Boot from SAN Configuring Boot from SAN IS0054604-00 A 2-7 6. Provide the initiator IP address, as shown in Figure 2-6 . Figure 2-6. Providing th e Initiator IP Address 7. Press ESC repeatedly until the screen shown in Figure 2-7 appears. Then, select the iSCSI Boot Settings option.
2–Boot from SAN Configuring Bo ot from SAN 2-8 IS0054604-00 A 8. Select Primary Boot Device Settings, as shown in Figure 2-8 . Figure 2-8. Select ing Primary Boot Device Settings 9. Provide the target I P address, as shown in Figure 2-9 . Figure 2-9.
2–Boot from SAN Configuring Boot from SAN IS0054604-00 A 2-9 10. Select Alternate Boot Devi ce Settings, as shown in Figure 2-10 . Figure 2-10. Selecting Alternate Boot Device Settings 1 1. Provide the t arget IP address, as shown in Figure 2-1 1 . Figure 2-1 1.
2–Boot from SAN Configuring Bo ot from SAN 2-10 IS0054604-00 A 12. Press ESC until the menu in Figure 2-12 appears. Select Reinit Adapter to save all IP setti ngs. Figure 2-12. Fast!UTIL Options 13. In iSCSI Boot Settings, select Primary (LUN), as shown in Figure 2-13 .
2–Boot from SAN Configuring Boot from SAN IS0054604-00 A 2-1 1 14. A list of the port’ s devices is displayed, as shown in Figure 2-14 . Select the device to be used as the boot device and press ENTER. Figure 2-14. List of Devices on the Port 15. Repeat step s 13 – 14 to edit the alternate b oot device setting, as in Figure 2-15 .
2–Boot from SAN Configuring Bo ot from SAN 2-12 IS0054604-00 A 16. Change the ad apter ’s boot mode to Manual , as Figure 2-16 shows. Figure 2-16. Setting the Boot Mode to Manual 17. Save the settings for the port. 18. Repeat steps 2 – 14 , but select the second port, a nd configure the boot target s on the port.
2–Boot from SAN Configuring Boot from SAN IS0054604-00 A 2-13 Boot from SAN Inst allation on SLES 1 1 SP2 T o configure the adapter for BFS on SLES 1 1 SP2, follow these steps: 1. Boot from the SLES 1 1 SP2 DVD, as shown in Figu re 2-17 . Figure 2-17.
2–Boot from SAN Configuring Bo ot from SAN 2-14 IS0054604-00 A 3. The Welcome screen appears, as shown in Figure 2-19 . F ollow the instructions on this screen to begin the inst allation.
2–Boot from SAN Configuring Boot from SAN IS0054604-00 A 2-15 Figure 2-21. iSCSI Initiator Overview Figure 2-22. Selecting System Probing.
2–Boot from SAN Configuring Bo ot from SAN 2-16 IS0054604-00 A Figure 2-23. Selecting the Installation Mode Figure 2-24. Setting th e Clock and T ime Zone.
2–Boot from SAN Configuring Boot from SAN IS0054604-00 A 2-17 Figure 2-25. Selecting th e Server Base Scenario Figure 2-26. Preparing the Hard Disk.
2–Boot from SAN Configuring Bo ot from SAN 2-18 IS0054604-00 A Figure 2-27. Performi ng the Installation 5. When the inst allation is completed, reboot the syste m and boot from the iSCSI adapter .
2–Boot from SAN Configuring Boot from SAN on RHEL 6.2 IS0054604-00 A 2-19 Configuring Boot from SAN on RHEL 6.2 Inst alling RHEL 6.2 T o install RHEL 6. 2, follow these steps: 1. Boot from the inst allation media, as shown in Figure 2-28 . Figure 2-28.
2–Boot from SAN Configuring Boot from SAN on RHEL 6.2 2-20 IS0054604-00 A 3. Select the network interface through wh ich the inst allation is to be done, as Figure 2-30 shows. Figure 2-30. Selecting Networ k Interface for Installation 4. Configure the IP address eith er st atically or using, as Figure 2-31 shows.
2–Boot from SAN Configuring Boot from SAN on RHEL 6.2 IS0054604-00 A 2-21 5. Once the network interface is configured, the inst allation starts, as shown in Figure 2-32 .
2–Boot from SAN Configuring Boot from SAN on RHEL 6.2 2-22 IS0054604-00 A 6. Select the language to use during the inst allation, as shown in Figure 2-33 .
2–Boot from SAN Configuring Boot from SAN on RHEL 6.2 IS0054604-00 A 2-23 7. Select the type of keyboard that is con nected to your system, as shown in Figure 2-34 .
2–Boot from SAN Configuring Boot from SAN on RHEL 6.2 2-24 IS0054604-00 A 8. Select one the two options shown in Fig ure 2-35 : Basic Storage Devices or Specialized S torage Devices . Y ou may select either option since the LUN has been added in the ad apter ’s BI OS.
2–Boot from SAN Configuring Boot from SAN on RHEL 6.2 IS0054604-00 A 2-25 9. Select the disk that was added in the adap ter ’s BIOS and verify that it ha s two paths to it, as sho wn in Figure 2-36 .
2–Boot from SAN Configuring Boot from SAN on RHEL 6.2 2-26 IS0054604-00 A 10. Enter the host name, a s shown in Figure 2-37 . Figure 2-37. Specifyi ng the Host Name.
2–Boot from SAN Configuring Boot from SAN on RHEL 6.2 IS0054604-00 A 2-27 1 1. Select the time zone, as shown in Figure 2-38 . Figure 2-38. Selecting the Time Zone.
2–Boot from SAN Configuring Boot from SAN on RHEL 6.2 2-28 IS0054604-00 A 12. Enter the root credentials t hat you want to set for the system, as shown in Figure 2-39 .
2–Boot from SAN Configuring Boot from SAN on RHEL 6.2 IS0054604-00 A 2-29 13. Select the type of p artition layout you want, as shown in Figure 2-40 .
2–Boot from SAN Configuring Boot from SAN on RHEL 6.2 2-30 IS0054604-00 A 14. Select the type of inst allation, as shown in Figure 2-41 . Figure 2-41.
2–Boot from SAN Configuring Boot from SAN on RHEL 6.2 IS0054604-00 A 2-31 15. The installer creates the p artitions on the disk and begins to cop y files to it, as show n in Figure 2-42 .
2–Boot from SAN Configuring Boot from SAN on RHEL 6.2 2-32 IS0054604-00 A 16. Once the files have been copied, the inst aller will prompt you to reboot the machine, as shown in Figure 2-42 .
2–Boot from SAN ql4xdisablesysfsboot Settin gs and Adapter Boot Mode IS0054604-00 A 2-33 ql4xdisablesysfsboot Settings and Adapter Boot Mode This section demonstrates the effect of the ql4xdisablesysf sboot parameter under differen t adapter boot modes.
2–Boot from SAN ql4xdisablesysfsboot Settings and Adap ter Boot Mode 2-34 IS0054604-00 A 2 Non-Boot from SAN a No target info is in the firm- ware 1 or 0 Disable Use iscsiadm for discov- ery and login to targets. The correct qla4xxx iface must be used.
IS0054604-00 A 3-1 3 Open-iSCSI User ’ s Guide This section provides a User’s Guide for Open-iSCSI. It inclu des the following topics: “Open-iSCSI Supported Features” on p age 3-2 “M.
3–Open-iSCSI User ’s Guide Open-iSCSI Supported Features 3-2 IS0054604-00 A Open-iSCSI Supported Features Open-iSCSI support has been added to the QLogic iSCSI driver in Red Hat Enterprise Linux 6.2 and SUSE Linux Enterprise Server 1 1 Service Pack 2.
3–Open-iSCSI User’s Guide Open-iSCSI Supported Features IS0054604-00 A 3-3 Default Behavior on SLES 1 1 SP2 Open-iSCSI is enabled by default on SLES 1 1 SP2 and lo gin to boot targ ets is triggered by iscsiadm during insta llation.
3–Open-iSCSI User ’s Guide Managing QLogic iSCSI Adapters Using iscsiadm 3-4 IS0054604-00 A Managing QLogic iSCSI Adapters Using iscsiadm iSCSI Configuration Files and Persistent Dat abases The Op.
3–Open-iSCSI User’s Guide Managing QLogic iSCSI Adap ters Using iscsiadm IS0054604-00 A 3-5 2. Discover the iSCSI target. 3. List all discovered target s. 4. Log in to all discovered t argets. 5. List all sessions. # iscsiadm -m discovery -t st -p 192.
3–Open-iSCSI User ’s Guide Managing QLogic iSCSI Adapters Using iscsiadm 3-6 IS0054604-00 A iSCSI Interface Configuration iSCSI Configuration Parameters Each iSCSI Host Bus Adapter , NIC, or network interface to which sessions a re bound should have its o wn iSCSI interface config file in /etc/ iscsi/ifaces .
3–Open-iSCSI User’s Guide Managing QLogic iSCSI Adap ters Using iscsiadm IS0054604-00 A 3-7 Example: IPv4 sample config file with st atic IP address List All ifaces # iscsiadm -m iface Example : # BEGIN RECORD 2.0-872 iface.iscsi_ifacename = qla4xxx-3 iface.
3–Open-iSCSI User ’s Guide Managing QLogic iSCSI Adapters Using iscsiadm 3-8 IS0054604-00 A Display iface Configuration Det ails # iscsiadm -m iface -I <iface_name> Example: Create an iface # iscsiadm -m iface -I <iface_name> -o new # iscsiadm -m iface -I qla4xxx.
3–Open-iSCSI User’s Guide Managing QLogic iSCSI Adap ters Using iscsiadm IS0054604-00 A 3-9 Example: Up date iface Network Parameters # iscsiadm -m iface -I <iface_name> -o update -n <rec.
3–Open-iSCSI User ’s Guide Managing QLogic iSCSI Adapters Using iscsiadm 3-10 IS0054604-00 A Example: IPv4 Settings (sta tic) Example: IPv4 Settings (DHCP) Example: IPv6 Settings (manual) Example: IPv6 Settings (neighbor disco very) # iscsiadm -m iface -I qla4xxx.
3–Open-iSCSI User’s Guide Managing QLogic iSCSI Adap ters Using iscsiadm IS0054604-00 A 3-1 1 Unidirectional and Bidi rectional CHAP settings Example: Display changes made to the 192 .168.1.84:3260 CHAP settings: NOTE The target should be logged out before updating the network p arameters.
3–Open-iSCSI User ’s Guide Managing QLogic iSCSI Adapters Using iscsiadm 3-12 IS0054604-00 A T arget Discovery Discover T arget s using sendt arget # iscsiadm -m discovery -t st -p <target_ip:target_port> -I <iface_name> -o new, delete, update, nonpersistent In discovery mode, iscsiadm will use the iscsid.
3–Open-iSCSI User’s Guide Managing QLogic iSCSI Adap ters Using iscsiadm IS0054604-00 A 3-13 Adding a New discoverydb for send target # iscsiadm -m discoverydb -t st -p 192.168.2.105 -I qla4xxx-3 -o new New discovery record for [192.168.2.105,3260] added.
3–Open-iSCSI User ’s Guide Managing QLogic iSCSI Adapters Using iscsiadm 3-14 IS0054604-00 A Remove send target Node # iscsiadm -m discoverydb -t st -p <target IP> -I <iface> -o delete Example: # iscsiadm -m discoverydb -t st -p 192.168.
3–Open-iSCSI User’s Guide Managing QLogic iSCSI Adap ters Using iscsiadm IS0054604-00 A 3-15 List All T arget s # iscsiadm -m node Example: Deleting a T arget Node # iscsiadm -m node -T <target name> -p <target portal> -I <iface> -o delete Example: # iscsiadm -m node -T iqn.
3–Open-iSCSI User ’s Guide Managing QLogic iSCSI Adapters Using iscsiadm 3-16 IS0054604-00 A Login to All T arget s Not specifying the t arget name, portal, and ifa ce name results in login to all portals on all nodes/target s through each interface specified in the node co nfiguration.
3–Open-iSCSI User’s Guide Features Not Supported IS0054604-00 A 3-17 Features Not Supported The features below are not supporte d in Red Hat Enterprise Linux 6.2. These features will be supported in Red Hat Enterpr ise Linux 6.3. 1. iSNS 2. Ping Migrating to Open-iSCSI Driver On a system that was successfully upgraded from RHEL 6.
3–Open-iSCSI User ’s Guide Linux Open-iSCSI README 3-18 IS0054604-00 A Linux Open-iSCSI README Go to http://www .open-iscsi.org/docs/README for more det ailed information about Linux Open-iSCSI.
IS0054604-00 A 4-1 4 Known Issues This section lists curre ntly known issues and provides a brief explanation of each issue. QLogic Application Limit a tions The RHEL 6.
4–Known Issue s CHAP Limitations 4-2 IS0054604-00 A.
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Se non hai ancora comprato il Q-Logic IS0054604-00 A è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Q-Logic IS0054604-00 A - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Q-Logic IS0054604-00 A imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Q-Logic IS0054604-00 A ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Q-Logic IS0054604-00 A, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Q-Logic IS0054604-00 A.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Q-Logic IS0054604-00 A. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Q-Logic IS0054604-00 A insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
