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[RedHat6] iSCSI Recovery Time Out ¿¡ ´ëÇؼ­..
±Û¾´ÀÌ : ÃÖÀå¼· ³¯Â¥ : 2016-06-30 (¸ñ) 11:16 Á¶È¸ : 3103
- ±âº»ÀûÀ¸·Î iSCSI ¸¦ ÀÌ¿ëÇÏ¿© º¼·ýÀ» ¸ÖƼÆнº·Î ±¸¼ºÇÏ´Â °æ¿ì, iSCSI ÀÇ ³×Æ®¿öÅ©°¡ ²÷¾îÁö°Ô µÇ¾úÀ» °æ¿ì iSCSI ¿¡¼­´Â ÁöÁ¤µÈ ½Ã°£¸¸Å­ ÇØ´ç Æнº¿¡ ÀÀ´äÀ» ±â´Ù¸®°Ô µÊ

  ±×·¸±â ¶§¹®¿¡ iSCSI ¸¦ ÀÌ¿ëÇÑ ¸ÖƼÆнº ±¸¼º½Ã ½ºÆ¿¾ÆÀÌ °°Àº HA ÀÇ °æ¿ì ÇØ´ç º¼·ýÀÇ Æнº ³×Æ®¿öÅ©°¡ ´ÜÀýµÈ °æ¿ì ½ºÆ¿¾ÆÀÌ¿¡¼­ º¼·ý ¸®¼Ò½º¸¦ üũ ÇÏ´Â ½Ã°£ (±âº»°ª 120ÃÊ) À» ª°Ô º¯°æÇÑ °æ¿ì ¹®Á¦°¡ µÉ ¼ö Àִµ¥ À̶§ iSCSI ÀÇ ¼³Á¤ÆÄÀÏ¿¡¼­ ¾Æ·¡ ÆĶó¹ÌÅÍ °ªÀ» º¯°æÇÏ¿© ÇØ´ç ¹®Á¦¿¡ ´ëÇؼ­ ¾î´ÀÁ¤µµ ÇØ°áÀÌ °¡´É ÇÔ

- ÆÄÀÏ À§Ä¡ /etc/iscsi/iscsid.conf
  node.session.timeo.replacement_timeout = 120

- ÇöÀç ¼³Á¤µÈ Time Out °ª È®ÀÎ ¹æ¹ý
  #service iscsi status

[root@20-SE01 ~]# service iscsi status
iSCSI Transport Class version 2.0-870
version 6.2.0-873.13.el6
Target: iqn.STORAGE.20-SE01 (non-flash)
    Current Portal: 40.40.40.240:3260,1
    Persistent Portal: 40.40.40.240:3260,1
        **********
        Interface:
        **********
        Iface Name: default
        Iface Transport: tcp
        Iface Initiatorname: iqn.1994-05.com.redhat:4ce92c8a166
        Iface IPaddress: 40.40.40.20
        Iface HWaddress: <empty>
        Iface Netdev: <empty>
        SID: 1
        iSCSI Connection State: LOGGED IN
        iSCSI Session State: LOGGED_IN
        Internal iscsid Session State: NO CHANGE
        *********
        Timeouts:
        *********
        Recovery Timeout: 120
        Target Reset Timeout: 30
        LUN Reset Timeout: 30
        Abort Timeout: 15
        *****
        CHAP:
        *****
        username: <empty>
        password: ********
        username_in: <empty>
        password_in: ********
        ************************
        Negotiated iSCSI params:
        ************************
        HeaderDigest: None
        DataDigest: None
        MaxRecvDataSegmentLength: 262144
        MaxXmitDataSegmentLength: 8192
        FirstBurstLength: 65536
        MaxBurstLength: 262144
        ImmediateData: Yes
        InitialR2T: Yes
        MaxOutstandingR2T: 1
        ************************
        Attached SCSI devices:
        ************************
        Host Number: 8    State: running
        scsi8 Channel 00 Id 0 Lun: 0
        scsi8 Channel 00 Id 0 Lun: 1
            Attached scsi disk sdb        State: running
    Current Portal: 50.50.50.240:3260,1
    Persistent Portal: 50.50.50.240:3260,1
        **********
        Interface:
        **********
        Iface Name: default
        Iface Transport: tcp
        Iface Initiatorname: iqn.1994-05.com.redhat:4ce92c8a166
        Iface IPaddress: 50.50.50.20
        Iface HWaddress: <empty>
        Iface Netdev: <empty>
        SID: 2
        iSCSI Connection State: LOGGED IN
        iSCSI Session State: LOGGED_IN
        Internal iscsid Session State: NO CHANGE
        *********
        Timeouts:
        *********
        Recovery Timeout: 120
        Target Reset Timeout: 30
        LUN Reset Timeout: 30
        Abort Timeout: 15
        *****
        CHAP:
        *****
        username: <empty>
        password: ********
        username_in: <empty>
        password_in: ********
        ************************
        Negotiated iSCSI params:
        ************************
        HeaderDigest: None
        DataDigest: None
        MaxRecvDataSegmentLength: 262144
        MaxXmitDataSegmentLength: 8192
        FirstBurstLength: 65536
        MaxBurstLength: 262144
        ImmediateData: Yes
        InitialR2T: Yes
        MaxOutstandingR2T: 1
        ************************
        Attached SCSI devices:
        ************************
        Host Number: 9    State: running
        scsi9 Channel 00 Id 0 Lun: 0
        scsi9 Channel 00 Id 0 Lun: 1
            Attached scsi disk sdc        State: running





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