We often to do complicated lab repro by traffics generator – IXIA, so it is important for us to use IXIA. In order to easy to handle the skill, I done some example by video. If you have good IXIA example video, please put here and share with us. The article will continue to be updated.
After install Centos7, found disk size less, so I need resize the disk, you can use some tools to achieve the function, e.g: GParted or disk-genius. But if your Server disk format is LVM, you can easy to manual adjust that. I don’t know how to resize LVM by Gparted or disk-genius. For this article, will discuss how to adjust Centos7/Ubuntu14.04 by LVM. That should same action/command in Centos and Ubuntu.
If you want to check steps in Ubuntu, can check this attachment: lvm-resize-ubuntu14.04
Check system contents by “sudo df -H”, check all disk status by “sudo fdisk -l”.
[root@frank ~]# df -H
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/myvg-root 7.4G 7.4G 4.0M 100% /
devtmpfs 2.1G 0 2.1G 0% /dev
tmpfs 2.1G 250k 2.1G 1% /dev/shm
tmpfs 2.1G 9.5M 2.1G 1% /run
tmpfs 2.1G 0 2.1G 0% /sys/fs/cgroup
/dev/mapper/myvg-home 731M 140M 591M 20% /home
/dev/sda1 521M 126M 396M 25% /boot
/dev/sr0 4.2G 4.2G 0 100% /run/media/root/CentOS 7 x86_64LV only know how mapping to VG, not care PV; And VG build up by PV, so you can easy to extended PV to increased VG’s disk.
[root@frank ~]# vgdisplay
--- Volume group ---
VG Name myvg
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 7.52 GiB
PE Size 4.00 MiB
Total PE 1925
Alloc PE / Size 1925 / 7.52 GiB
Free PE / Size 0 / 0 <<<
VG UUID 0kMilm-TbT5-gs60-Vfl5-3obp-WybF-1BMwXA[root@frank ~]# pvdisplay
--- Physical volume ---
PV Name /dev/sda2
VG Name myvg
PV Size 7.52 GiB / not usable 4.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 1925 <<<
Free PE 0
Allocated PE 1925 <<<
PV UUID whbkik-T1Ke-fLlF-ZBph-3pcd-loYG-yRweel[root@frank ~]# lvdisplay
--- Logical volume ---
LV Path /dev/myvg/root
LV Name root
VG Name myvg
LV UUID K15Fr3-QNP3-a17k-IhNU-8qIV-LQAZ-iJ9bgV
LV Write Access read/write
LV Creation host, time localhost, 2014-09-23 14:38:07 +0800
LV Status available
# open 1
LV Size 6.84 GiB
Current LE 1750
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:0
--- Logical volume ---
LV Path /dev/myvg/home
LV Name home
VG Name myvg
LV UUID 4nCfU9-5T2S-eKve-hMnc-Ao2l-So1o-lQwlU5
LV Write Access read/write
LV Creation host, time localhost, 2014-09-23 14:38:11 +0800
LV Status available
# open 1
LV Size 700.00 MiB
Current LE 175
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:1[root@frank ~]# fdisk /dev/sda
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): p
Disk /dev/sda: 53.7 GB, 53687091200 bytes, 104857600 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x000a7fd0
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 1026047 512000 83 Linux
/dev/sda2 1026048 16803839 7888896 8e Linux LVM
/dev/sda3 16803840 20899839 2048000 82 Linux swap / Solaris
Command (m for help): n
Partition type:
p primary (3 primary, 0 extended, 1 free)
e extended
Select (default e):
Using default response e
Selected partition 4
First sector (20899840-104857599, default 20899840):
Using default value 20899840
Last sector, +sectors or +size{K,M,G} (20899840-104857599, default 104857599):
Using default value 104857599
Partition 4 of type Extended and of size 40 GiB is set
Command (m for help): p
Disk /dev/sda: 53.7 GB, 53687091200 bytes, 104857600 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x000a7fd0
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 1026047 512000 83 Linux
/dev/sda2 1026048 16803839 7888896 8e Linux LVM
/dev/sda3 16803840 20899839 2048000 82 Linux swap / Solaris
/dev/sda4 20899840 104857599 41978880 5 Extended
Command (m for help): n
All primary partitions are in use
Adding logical partition 5
First sector (20901888-104857599, default 20901888):
Using default value 20901888
Last sector, +sectors or +size{K,M,G} (20901888-104857599, default 104857599): +7G
Partition 5 of type Linux and of size 7 GiB is set
Command (m for help):
Command (m for help): p
Disk /dev/sda: 53.7 GB, 53687091200 bytes, 104857600 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x000a7fd0
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 1026047 512000 83 Linux
/dev/sda2 1026048 16803839 7888896 8e Linux LVM
/dev/sda3 16803840 20899839 2048000 82 Linux swap / Solaris
/dev/sda4 20899840 104857599 41978880 5 Extended
/dev/sda5 20901888 35581951 7340032 83 Linux
Command (m for help): t
Partition number (1-5, default 5):
Hex code (type L to list all codes): 8e
Changed type of partition 'Linux' to 'Linux LVM'
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table. The new table will be used at
the next reboot or after you run partprobe(8) or kpartx(8)
Syncing disks.
[root@frank ~]# partx -a /dev/sda
partx: /dev/sda: error adding partitions 1-3
[root@frank ~]# ll /dev/sda*
brw-rw---- 1 root disk 8, 0 Sep 24 22:12 /dev/sda
brw-rw---- 1 root disk 8, 1 Sep 24 17:43 /dev/sda1
brw-rw---- 1 root disk 8, 2 Sep 24 17:43 /dev/sda2
brw-rw---- 1 root disk 8, 3 Sep 24 17:43 /dev/sda3
brw-rw---- 1 root disk 8, 4 Sep 24 22:13 /dev/sda4
brw-rw---- 1 root disk 8, 5 Sep 24 22:13 /dev/sda5
[root@frank ~]# pvcreate /dev/sda5
Physical volume "/dev/sda5" successfully created
[root@frank ~]# pvdisplay
--- Physical volume ---
PV Name /dev/sda2
VG Name myvg
PV Size 7.52 GiB / not usable 4.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 1925
Free PE 0
Allocated PE 1925
PV UUID whbkik-T1Ke-fLlF-ZBph-3pcd-loYG-yRweel
"/dev/sda5" is a new physical volume of "7.00 GiB"
--- NEW Physical volume ---
PV Name /dev/sda5
VG Name <<< no config VG, so empty
PV Size 7.00 GiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID WCKrXq-j2ZL-PoZ8-PcXd-fjb8-Riud-e5yl6m[root@frank ~]# vg
vgcfgbackup vgck vgdisplay vgimport vgmknodes vgrename vgsplit
vgcfgrestore vgconvert vgexport vgimportclone vgreduce vgs
vgchange vgcreate vgextend vgmerge vgremove vgscan
[root@frank ~]# vgextend
Please enter volume group name and physical volume(s)
Run `vgextend --help' for more information.
[root@frank ~]#
[root@frank ~]# vgextend myvg /dev/sda5
Volume group "myvg" successfully extended
[root@frank ~]#
[root@frank ~]# pvdisplay
--- Physical volume ---
PV Name /dev/sda2
VG Name myvg
PV Size 7.52 GiB / not usable 4.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 1925
Free PE 0
Allocated PE 1925
PV UUID whbkik-T1Ke-fLlF-ZBph-3pcd-loYG-yRweel
--- Physical volume ---
PV Name /dev/sda5
VG Name myvg
PV Size 7.00 GiB / not usable 4.00 MiB
Allocatable yes
PE Size 4.00 MiB
Total PE 1791
Free PE 1791
Allocated PE 0
PV UUID WCKrXq-j2ZL-PoZ8-PcXd-fjb8-Riud-e5yl6m
[root@frank ~]# vgdisplay
--- Volume group ---
VG Name myvg
System ID
Format lvm2
Metadata Areas 2
Metadata Sequence No 4
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 2
Act PV 2
VG Size 14.52 GiB
PE Size 4.00 MiB
Total PE 3716
Alloc PE / Size 1925 / 7.52 GiB
Free PE / Size 1791 / 7.00 GiB
VG UUID 0kMilm-TbT5-gs60-Vfl5-3obp-WybF-1BMwXAAs above info, VG had increased, now we need add those VG to LC, you can add by G/MB/PE, suggest use PE that is more accurate, as follow：
[root@frank ~]# lvresize -l +1791 /dev/myvg/root
Extending logical volume root to 13.83 GiB
Logical volume root successfully resized
[root@frank ~]# lvdisplay
--- Logical volume ---
LV Path /dev/myvg/root
LV Name root
VG Name myvg
LV UUID K15Fr3-QNP3-a17k-IhNU-8qIV-LQAZ-iJ9bgV
LV Write Access read/write
LV Creation host, time localhost, 2014-09-23 14:38:07 +0800
LV Status available
# open 1
LV Size 13.83 GiB
Current LE 3541
Segments 2
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:0Activate by “resize2fs”, but found command couldn’t use:
[root@frank ~]# resize2fs /dev/myvg/root
resize2fs 1.42.9 (28-Dec-2013)
resize2fs: Bad magic number in super-block while trying to open /dev/myvg/root
Couldn't find valid filesystem superblock.After checked，that due to root system should xfs in Centos7/Ubuntu 14.04, “resize2fs” only support ext2, ext3 and ext4, so replaced “resize2fs” by “xfs_growfs”: Trying to resize2fs EB volume fails [closed]
[root@frank ~]# xfs_growfs /dev/myvg/root
meta-data=/dev/mapper/myvg-root isize=256 agcount=4, agsize=448000 blks
= sectsz=512 attr=2, projid32bit=1
= crc=0
data = bsize=4096 blocks=1792000, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
data blocks changed from 1792000 to 3625984
[root@frank ~]# df -H
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/myvg-root 15G 7.4G 7.6G 50% /
devtmpfs 2.1G 0 2.1G 0% /dev
tmpfs 2.1G 254k 2.1G 1% /dev/shm
tmpfs 2.1G 9.4M 2.1G 1% /run
tmpfs 2.1G 0 2.1G 0% /sys/fs/cgroup
/dev/mapper/myvg-home 731M 141M 591M 20% /home
/dev/sda1 521M 126M 396M 25% /boot
/dev/sr0 4.2G 4.2G 0 100% /run/media/root/CentOS 7 x86_64After adding new NVME, you will find the disk but cannot use:
[root@gcspr-vxr pyvxr]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 894.3G 0 disk
├─sda1 8:1 0 63M 0 part /boot/efi
├─sda2 8:2 0 500M 0 part /boot
├─sda3 8:3 0 1M 0 part
└─sda4 8:4 0 893.7G 0 part
├─xfs_vol-root 253:0 0 97.7G 0 lvm /
├─xfs_vol-swap 253:1 0 23.6G 0 lvm [SWAP]
└─xfs_vol-nobackup 253:2 0 772.5G 0 lvm /nobackup
nvme0n1 259:0 0 2.9T 0 disk <<<
nvme1n1 259:1 0 2.9T 0 disk <<<Need to fdisk, format and mount, as follow:
[root@gcspr-vxr /]# fdisk /dev/nvme1n1
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): n
Partition number (1-128, default 1):
First sector (34-6251233934, default 2048):
Last sector, +sectors or +size{K,M,G,T,P} (2048-6251233934, default 6251233934):
Created partition 1
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@gcspr-vxr /]# mkfs.ext4 /dev/nvme1n1p1
mke2fs 1.42.9 (28-Dec-2013)
Discarding device blocks: done
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
195354624 inodes, 781403985 blocks
39070199 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=2929721344
23847 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
102400000, 214990848, 512000000, 550731776, 644972544
Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
[root@gcspr-vxr /]# mkdir vxrbackup
[root@gcspr-vxr /]# mount /dev/nvme1n1p1 /vxrbackup
[root@gcspr-vxr /]# chmod 777 /vxrbackup/ -R
[root@gcspr-vxr /]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 894.3G 0 disk
├─sda1 8:1 0 63M 0 part /boot/efi
├─sda2 8:2 0 500M 0 part /boot
├─sda3 8:3 0 1M 0 part
└─sda4 8:4 0 893.7G 0 part
├─xfs_vol-root 253:0 0 97.7G 0 lvm /
├─xfs_vol-swap 253:1 0 23.6G 0 lvm [SWAP]
└─xfs_vol-nobackup 253:2 0 772.5G 0 lvm /nobackup
nvme0n1 259:0 0 2.9T 0 disk
└─nvme0n1p1 259:2 0 2.9T 0 part /vxr <<<
nvme1n1 259:1 0 2.9T 0 disk
└─nvme1n1p1 259:3 0 2.9T 0 part /vxrbackup <<<Check type and add to fstab:
[root@gcspr-vxr vxr]# df -T
Filesystem Type 1K-blocks Used Available Use% Mounted on
......
/dev/nvme1n1p1 ext4 3076422524 75821596 2844303748 3% /vxrbackup
/dev/nvme0n1p1 ext4 3076422524 186183620 2733941724 7% /vxr
[root@gcspr-vxr vxr]# echo "/dev/nvme1n1p1 /vxrbackup ext4 defaults 0 0" >> /etc/fstab
[root@gcspr-vxr vxr]# echo "/dev/nvme0n1p1 /vxr ext4 defaults 0 0" >> /etc/fstabThere are some internal tools that can decode SPP packets at former, but they are not work now. In some scenario, customer coudln’t do span on our asr9k, so we only need SPP, then will face to how to decode SPP result.
The article disscuss how to covert SPP original data to text2pcap readable format, then decode by text2pcap. You only do the script that can auto work. Btw, before do that, you need have python2.7 and text2pcap (integrate in wireshark). If you have python3.0 or newer, that maybe have some issue, because some function have a bit different, you need adjust them by yourself.
=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2017.12.04 17:12:19 =~=~=~=~=~=~=~=~=~=~=~= trace p stop Tracing stopped with 666 outstanding... spp-ui> trace print Packet serial 861 port4/classify: length 148 phys_int_index 0 next_ctx 0xdeadbeef time 09:10:41.407 00: 00 70 72 00 00 08 00 65 7a 00 00 00 ff ff 00 07 10: 80 30 00 00 00 00 0f 00 00 00 1f 00 00 00 00 00 20: 00 70 05 f2 42 fb 00 00 04 00 01 40 07 01 05 27 30: 06 03 0e 06 00 00 00 00 4c 00 00 00 00 00 58 00 40: 00 00 00 00 00 00 06 01 00 a1 13 41 92 60 00 b2 50: 64 41 8a 4c 08 00 45 c0 00 3e 00 00 00 00 fe 11 60: c8 25 12 ac 79 0d 34 df d0 01 02 86 02 86 00 2a 70: 75 5a 00 01 00 1e 3f da a4 0f 00 00 01 00 00 14 80: 00 00 00 00 04 00 00 04 00 5a c0 00 04 01 00 04 90: 3f da a4 0f 00 00 00 00 00 00 00 00 00 00 00 00 a0: 00 00 00 17 00 08 05 01 00 00 af c8 00 24 14 01 b0: 01 08 3f da d0 46 20 00 01 08 3f da d0 42 20 00 c0: 01 08 3f da d0 41 20 00 01 08 3f da d0 07 20 00 d0: 00 08 13 01 00 00 08 00 00 20 cf 07 00 00 07 16 e0: 4d 50 4c 53 2d 54 45 20 74 6f 20 76 61 72 30 31 f0: 2e 6b 6c 70 30 32 00 00 00 0c 0b 07 3f df 04 08 --------------------------
Customer get HostOS when connect to XRVM console after installing ISSU SMU, and confirmed XRVM normal work.
Customer found 0/4/cpu0 have many ingressq asic error, after checked, that should match a know DDTS: CSCuu86430. The issue maybe was triggered when CRS-3 MSCs(140G) interactive with a CRS-X(400G) fabric. After trigger the issue, will found CRS-X’s fabric link of s1rx flapping. Have reload SMU under 514.
For this article, will show how to troubleshooting the fabric link flapping.
1. Customer found follow alarm:
LC/0/4/CPU0:Nov 8 00:30:26.752 : ingressq[235]: %FABRIC-INGRESSQ-6-LINK_DOWN : Ingressq: Link 26 of Asic Instance 0 has been administratively shut down. LC/0/1/CPU0:Nov 8 00:37:59.734 : fabricq_mgr[178]: %FABRIC-FABRICQ-3-PCL_PKT : Minor error in PCL of fabricq asic 0. PCL UC Lost Packet: CAOPCI: 0x18 (0/4, UC, LO):Lost Packet count= 1 LC/0/4/CPU0:Nov 8 00:37:59.734 : ingressq[235]: %FABRIC-INGRESSQ-6-LINK_DOWN : Ingressq: Link 26 of Asic Instance 0 has been administratively shut down. LC/0/4/CPU0:Nov 8 10:27:27.265 : ingressq[235]: %FABRIC-INGRESSQ-6-LINK_DOWN : Ingressq: Link 26 of Asic Instance 0 has been administratively shut down. LC/0/4/CPU0:Nov 8 11:06:08.181 : ingressq[235]: %FABRIC-INGRESSQ-6-LINK_DOWN : Ingressq: Link 26 of Asic Instance 0 has been administratively shut down. LC/0/1/CPU0:Nov 8 11:08:46.132 : fabricq_mgr[178]: %FABRIC-FABRICQ-3-PCL_PKT : Minor error in PCL of fabricq asic 0. PCL UC Partial Packet: CAOPCI: 0x18 (0/4, UC, LO) LC/0/4/CPU0:Nov 8 11:18:34.733 : ingressq[235]: %FABRIC-INGRESSQ-6-LINK_DOWN : Ingressq: Link 26 of Asic Instance 0 has been administratively shut down. LC/0/4/CPU0:Nov 8 11:28:44.350 : ingressq[235]: %FABRIC-INGRESSQ-6-LINK_DOWN : Ingressq: Link 26 of Asic Instance 0 has been administratively shut down.