Contents
- lab
-
troubleshooting
- Changing the disk shelf ID
- collection autosupport log
- System Fault Led is on (FAS 2240-2)
- too many users logged in! please try again later.
- fri dec 25 15:03:29 cst [ur-2240a:sis.changelog.full:warning]: sis change logging metafile for volume vol1_a is full.
- oncommand system manager error 500 connection refused
- aggr ?
- how to monitor netapp storage systems using snmp
- netapp best practice
-
how to
- initialize setting
- how to add disk shelf to exist netapp
- data ontap basic command please?
- pocket guide for netapp commands
- netapp basic how to
- test failover works
- simulator download
- 7 mode vs cluster mode
- oncommand
- how to determine the disk and shelf firmware version on a controller and verify it is up to date
- iops calc
- perfstat
- upgrade shelf disk firmware
- re: understanding aggregate and lun
- netapp ds4243, ds4246 and ds2246 sas storage shelf experiences a spurious id change
- netapp knowledgebase - how to power down and power up the controllers in a 7-mode ha-pair:
- flash pool setting
- differences between netapp flash cache and flash pool
- performance tunning
- Troubleshooting
lab
http://labondemand.netapp.com/
https://library.netapp.com/ecmdocs/ECMP1136573/html/frameset.html
System Performance Modeler
UP tool
UP Supported Components: cDOT & 7-Mode Storage Controllers, Windows, VMware, Linux, HPUX, AIX, Cisco, Brocade
top 10 qa
https://kb.netapp.com/support/index?page=content&id=4010151
how to find lun wwid
http://www.voleg.info/netapp_serial_to_wwid_converter.html
data ontap simulator requirements
http://mysupport.netapp.com/now/cgi-bin/simulator http://mysupport.netapp.com/now/cgi-bin/simulatorlic8.cgi/download/tools/simulator/ontap/8.1.3/vsim_netapp-7m.tgz
adding disks to a data ontap
SNAPSHOT
Cluster1::> run -node Cluster1-0
Cluster1-01 Cluster1-02
Cluster1::> run -node Cluster1-02
Type 'exit' or 'Ctrl-D' to return to the CLI
Cluster1-02> snap delete -a -f vol0
Deleted vol0 snapshot hourly.5.
Deleted vol0 snapshot hourly.4.
Deleted vol0 snapshot nightly.1.
Deleted vol0 snapshot hourly.3.
Deleted vol0 snapshot hourly.2.
Deleted vol0 snapshot hourly.1.
Deleted vol0 snapshot hourly.0.
Deleted vol0 snapshot nightly.0.
Cluster1-02> snap sched vol0 0 0 0
Cluster1-02> snap autodelete vol0 on
snap autodelete: snap autodelete enabled
Cluster1-02> snap autodelete vol0 target_free_space 35
snap autodelete: snap autodelete configuration options set
Cluster1-02> snap autodelete vol0
snapshot autodelete settings for vol0:
state : on
commitment : try
trigger : volume
target_free_space : 35%
delete_order : oldest_first
defer_delete : user_created
prefix : (not specified)
destroy_list : none
troubleshooting
Changing the disk shelf ID
Steps 1. Turn on the power to the disk shelf if it is not already on. 2. Remove the left end cap to locate the button near the shelf LEDs. 3. Change the first number of the shelf ID by pressing and holding the orange button until the first number on the digital display blinks, which can take up to three seconds. Note: If the ID takes longer than three seconds to blink, press the button again, making sure to press it in all the way. This activates the disk shelf ID programming mode. 4. Press the button to advance the number until you reach the desired number from 0 to 9. The first number continues to blink. 5. Change the second number of the shelf ID by pressing and holding the button until the second number on the digital display blinks, which can take up to three seconds. The first number on the digital display stops blinking. 6. Press the button to advance the number until you reach the desired number from 1 to 9. The second number continues to blink. 7. Lock in the desired number and exit the programming mode by pressing and holding the button until the second number stops blinking, which can take up to three seconds. Both numbers on the digital display start blinking and the amber LED on the operator display panel illuminates after about five seconds, alerting you that the pending disk shelf ID has not yet 8. Power cycle the disk shelf to make the shelf ID take effect.
collection autosupport log
- Display the health status of the system, which reflects the overall status of individual health monitors
system health status show
- Display the health status of subsystems for which health monitoring is available
system health subsystem show
- node run -node local sysconfig -a
收集ASUP log，执行下面的命令就可以了，log就会产生。 system node autosupport invoke -node * -type all -uri file:///mroot/etc/log/case_number-asup.7z 存储的管理IP后面跟 /SPI，然后输入admin账号密码 https://x.x.x.x/spi/ log的路径是 /etc/log/case_number-asup.7z
System Fault Led is on (FAS 2240-2)
We opened a case for this issue. Support sent to me the 7-step process below to resolve the issue with the system fault LEDs:
1. At the Data ONTAP CLI prompt, issue the “halt –s” command. Please note that this will cause an HA takeover in an HA configuration.
2. Wait for the controller to shut down and power off.
3. On the console port (not RSH, SSH, etc.), issue a “^G”(ctrl G)to switch the console to the SP.
4. Log in to the SP.
5. At the SP prompt, issue the “system power on” command.
6. Issue a “^D”(ctrl D)to get back to the Data ONTAP console.
7. Once the BIOS / Loader have booted, issue the “boot_ontap” command.
8. Issue Giveback after Takeover.
After following the 7-step process, the issue has been solved
Regards,http://vipulvajpayeestorage.blogspot.com/2012/04/netapp-fas-2240-storage-showing-pcm.html
too many users logged in! please try again later.
http://nayabrasools.blogspot.com/2013/08/netapp-too-many-users-logged-in-please.html
可能是其他人有登入，則請其他人先退出 或是登入後因為網路不穩，造成連線不正常中斷，此時就必須要等timeout時間一到，才可以再登入 另外可以嘗試透過rsh重啟telnet 或是ssh服務來解決這個問題 首先確定netapp 的rsh 是否有開啟 找一台client測試以下指令 client# rsh filer_ip -l root@password df 如果有正常回應的話 輸入 client# rsh filer_ip -l root@password "options ssh.enable off" client# rsh filer_ip -l root@password "options ssh.enable on" 或是 client# rsh filer_ip -l root@password "options telnet.enable off" client# rsh filer_ip -l root@password "options telnet.enable on" 即可
rsh 192.168.0.192 -l root:xx sysconfig -a rsh <filername> -l root:<password> logout telnet
fri dec 25 15:03:29 cst [ur-2240a:sis.changelog.full:warning]: sis change logging metafile for volume vol1_a is full.
oncommand system manager error 500 connection refused
tls is disabled by default on the storage controllers. it must be explicitly enabled to enable tls, run the following command via the shell:
options tls.enable on
that should do it.
aggr ?
for volumes - you can't have a flexible volume without an aggregate. flex vols
- are logical, aggregates are physical. you layer one or more flex vols on top (in side) of an aggregate
how to monitor netapp storage systems using snmp
https://kb.netapp.com/support/index?page=content&id=1011225&pmv=print&impressions=false
netapp best practice
as the best practice, netapp now recommends to set fractional reserve and snap reserve for your volumes to 0%. don’t forget about that, if you want to save more storage space:
> vol options “targetvol” fractional_reserve 0
> snap reserve “targetvol” 0
disable snapshots if you don’t use them:
> snap sched “targetvol” 0
how to
initialize setting
http://www.getshifting.com/wiki/netappchangeip
how to add disk shelf to exist netapp
http://www.cosonok.com/2013/03/how-to-hot-add-ds4243-shelf-quick-guide.html
- how to add a new disk shelf to a netapp filer ?? assumption:- filer has already one disk shelf connected this is the new one which has to be added and cabled. cables required:- two sas cables , two acp (cat6 ethernet ) cables if any
1. rack the shelf
2. connect power cables & turn the shelf on (wait about 30 seconds)
3. on the front of the shelf, change the shelf id to something unique. (try and keep it sequential with the shelf that's already there) do not use "00"
4. wait about 45 seconds and then restart the shelf and make sure the new shelf id came up.
5. ssh into both filers and do "options disk.auto_assign off"
6. do a "storage show disk -p" on both controllers and copy the contents into a txt file and save it. (run this command again and make sure all your disks are still there)
7. do a "options autosupport.doit "before shelf add"" on both controllers since i'm scared your doing this via community forums. ("before shelf add" is in quotes on the command)
8. now for the fun part, take a sas cable and plug one end into the top circle of the old shelf and plug it in the bottom square of the
- new shelf
9. now take another sas cable and plug one end into the bottom circle of the old shelf and plug it into the top square of the new shelf
10. assign your disks and don't forget to turn back on disk auto assign when you're done.
11. run "storage show disk -p" and make sure all of your old disks are there.
(shelves at the end of a stack are always reversed, this is a special circumstance and you will not cable all shelves like this in the future. http://nayabrasools.blogspot.com/2012/10/how-to-add-new-disk-shelf-to-netapp.html
data ontap basic command please?
- this post contains the list of commands that will be most used
and will come handy when managing or monitoring or troubleshooting a netapp filer.
sysconfig -a : shows hardware
configuration with more verbose information
sysconfig -d :
shows information of the disk attached to the filer
version : shows the
netapp ontap os version.
uptime : shows the
filer uptime
dns info : this
shows the dns resolvers, the no of hits and misses and other info
nis info : this
shows the nis domain name, yp servers etc.
rdfile : like
"cat" in linux, used to read contents of text files/
wrfile :
creates/overwrites a file. similar to "cat > filename" in linux
aggr status : shows
the aggregate status
aggr status -r :
shows the raid configuration, reconstruction information of the disks in filer
aggr show_space :
shows the disk usage of the aggreate, wafl reserve, overheads etc.
vol status : shows
the volume information
vol status -s :
displays the spare disks on the filer
vol status -f :
displays the failed disks on the filer
vol status -r :
shows the raid configuration, reconstruction information of the disks
df -h : displays
volume disk usage
df -i : shows the inode
counts of all the volumes
df -ah : shows
"df" information of the aggregate
license :
displays/add/removes license on a netapp filer
maxfiles : displays
and adds more inodes to a volume
aggr create :
creates aggregate
vol create
<volname> <aggrname> <size> : creates volume in an aggregate
vol offline
<volname> : offlines a volume
vol online
<volname> : onlines a volume
vol destroy
<volname> : destroys and removes an volume
vol size
<volname> [+|-]<size> : resize a volume in netapp filer
vol options : displays/changes
volume options in a netapp filer
qtree create
<qtree-path> : creates qtree
qtree status :
displays the status of qtrees
quota on : enables
quota on a netapp filer
quota off :
disables quota
quota resize :
resizes quota
quota report :
reports the quota and usage
snap list :
displays all snapshots on a volume
snap create
<volname> <snapname> : create snapshot
snap sched
<volname> <schedule> : schedule snapshot creation
snap reserve
<volname> <percentage> : display/set snapshot reserve space in volume
/etc/exports : file
that manages the nfs exports
rdfile /etc/exports
: read the nfs exports file
wrfile /etc/exports
: write to nfs exports file
exportfs -a :
exports all the filesystems listed in /etc/exports
cifs setup : setup
cifs
cifs shares : create/displays
cifs shares
cifs access :
changes access of cifs shares
lun create :
creates iscsi or fcp luns on a netapp filer
lun map : maps lun
to an igroup
lun show : show all
the luns on a filer
igroup create :
creates netapp igroup
lun stats : show lun
i/o statistics
disk show : shows
all the disk on the filer
disk zero spares :
zeros the spare disks
disk_fw_update :
upgrades the disk firmware on all disks
options :
display/set options on netapp filer
options nfs :
display/set nfs options
options timed :
display/set ntp options on netapp.
options autosupport
: display/set autosupport options
options cifs :
display/set cifs options
options tcp :
display/set tcp options
options net :
display/set network options
ndmpcopy
<src-path> <dst-path> : initiates ndmpcopy
ndmpd status :
displays status of ndmpd
ndmpd killall :
terminates all the ndmpd processes.
ifconfig :
displays/sets ip address on a network/vif interface
vif create :
creates a vif (bonding/trunking/teaming)
vif status :
displays status of a vif
netstat : displays
network statistics
sysstat -us 1 : begins a 1
second sample of the filer's current utilization (crtl - c to end)
nfsstat : shows nfs
statistics
nfsstat -l :
displays nfs stats per client
nfs_hist : displays
nfs historgram
statit : beings/ends a
performance workload sampling [-b starts / -e ends]
stats : displays
stats for every counter on netapp. read stats man page for more info
ifstat : displays
network interface stats
qtree stats :
displays i/o stats of qtree
environment : display
environment status on shelves and chassis of the filer
storage show
<disk|shelf|adapter> : shows storage component details
snapmirror
intialize : initialize a snapmirror relation
snapmirror update :
manually update snapmirror relation
snapmirror resync :
resyns a broken snapmirror
snapmirror quiesce
: quiesces a snapmirror bond
snapmirror break :
breakes a snapmirror relation
snapmirror abort :
abort a running snapmirror
snapmirror status :
shows snapmirror status
lock status -h :
displays locks held by filer
sm_mon : manage the
locks
storage download
shelf : installs the shelf firmware
software get :
download the netapp os software
software install :
installs os
download : updates
the installed os
cf status :
displays cluster status
cf takeover : takes
over the cluster partner
cf giveback : gives
back control to the cluster partner
reboot : reboots a
filer
pocket guide for netapp commands
this post contains the list of commands that will be most used and will come handy when managing or monitoring or troubleshooting a netapp filer.
sysconfig -a : shows hardware
configuration with more verbose information
sysconfig -d :
shows information of the disk attached to the filer
version : shows the
netapp ontap os version.
uptime : shows the
filer uptime
dns info : this
shows the dns resolvers, the no of hits and misses and other info
nis info : this
shows the nis domain name, yp servers etc.
rdfile : like
"cat" in linux, used to read contents of text files/
wrfile :
creates/overwrites a file. similar to "cat > filename" in linux
aggr status : shows
the aggregate status
aggr status -r :
shows the raid configuration, reconstruction information of the disks in filer
aggr show_space :
shows the disk usage of the aggreate, wafl reserve, overheads etc.
vol status : shows
the volume information
vol status -s :
displays the spare disks on the filer
vol status -f :
displays the failed disks on the filer
vol status -r :
shows the raid configuration, reconstruction information of the disks
df -h : displays
volume disk usage
df -i : shows the inode
counts of all the volumes
df -ah : shows
"df" information of the aggregate
license :
displays/add/removes license on a netapp filer
maxfiles : displays
and adds more inodes to a volume
aggr create :
creates aggregate
vol create
<volname> <aggrname> <size> : creates volume in an aggregate
vol offline
<volname> : offlines a volume
vol online
<volname> : onlines a volume
vol destroy
<volname> : destroys and removes an volume
vol size
<volname> [+|-]<size> : resize a volume in netapp filer
vol options : displays/changes
volume options in a netapp filer
qtree create
<qtree-path> : creates qtree
qtree status :
displays the status of qtrees
quota on : enables
quota on a netapp filer
quota off :
disables quota
quota resize :
resizes quota
quota report :
reports the quota and usage
snap list :
displays all snapshots on a volume
snap create
<volname> <snapname> : create snapshot
snap sched
<volname> <schedule> : schedule snapshot creation
snap reserve
<volname> <percentage> : display/set snapshot reserve space in volume
/etc/exports : file
that manages the nfs exports
rdfile /etc/exports
: read the nfs exports file
wrfile /etc/exports
: write to nfs exports file
exportfs -a :
exports all the filesystems listed in /etc/exports
cifs setup : setup
cifs
cifs shares : create/displays
cifs shares
cifs access :
changes access of cifs shares
lun create :
creates iscsi or fcp luns on a netapp filer
lun map : maps lun
to an igroup
lun show : show all
the luns on a filer
igroup create :
creates netapp igroup
lun stats : show lun
i/o statistics
disk show : shows
all the disk on the filer
disk zero spares :
zeros the spare disks
disk_fw_update :
upgrades the disk firmware on all disks
options :
display/set options on netapp filer
options nfs :
display/set nfs options
options timed :
display/set ntp options on netapp.
options autosupport
: display/set autosupport options
options cifs :
display/set cifs options
options tcp :
display/set tcp options
options net :
display/set network options
ndmpcopy
<src-path> <dst-path> : initiates ndmpcopy
ndmpd status :
displays status of ndmpd
ndmpd killall :
terminates all the ndmpd processes.
ifconfig :
displays/sets ip address on a network/vif interface
vif create :
creates a vif (bonding/trunking/teaming)
vif status :
displays status of a vif
netstat : displays
network statistics
sysstat -us 1 : begins a 1
second sample of the filer's current utilization (crtl - c to end)
nfsstat : shows nfs
statistics
nfsstat -l :
displays nfs stats per client
nfs_hist : displays
nfs historgram
statit : beings/ends a
performance workload sampling [-b starts / -e ends]
stats : displays
stats for every counter on netapp. read stats man page for more info
ifstat : displays
network interface stats
qtree stats :
displays i/o stats of qtree
environment : display
environment status on shelves and chassis of the filer
storage show
<disk|shelf|adapter> : shows storage component details
snapmirror
intialize : initialize a snapmirror relation
snapmirror update :
manually update snapmirror relation
snapmirror resync :
resyns a broken snapmirror
snapmirror quiesce
: quiesces a snapmirror bond
snapmirror break :
breakes a snapmirror relation
snapmirror abort :
abort a running snapmirror
snapmirror status :
shows snapmirror status
lock status -h :
displays locks held by filer
sm_mon : manage the
locks
storage download
shelf : installs the shelf firmware
software get :
download the netapp os software
software install :
installs os
download : updates
the installed os
cf status :
displays cluster status
cf takeover : takes
over the cluster partner
cf giveback : gives
back control to the cluster partner
reboot : reboots a
filervperumal former netapp employee http://community.netapp.com/t5/data-ontap-discussions/data-ontap-basic-command-please/td-p/59641
netapp basic how to
lun create & map
1, fcp wwpn-alias set alias_name wwpn
2,igroup create -i -t windows_2008 win-group0 alias_name,1,2,3
igroup create -f -t aix ibm_p720 ibm_p720a ibm_p720b igroup create -f -t windows image 198.0.0.10 igroup add initialtor_group nodename/alias_name
3, n6060a>
vol create ibm_p720 aggr0a 330g vol create image aggr0a 2448g vol create data aggr0a 900g vol create chjbak aggr0b 900g snap reserve ibm_p720 0
4, lun create -s size -t ostype lun_path (lun show)
lun create -s 5g -t aix /vol/ibm_p720/crs01 lun create -s 5g -t aix /vol/ibm_p720/crs02 lun create -s 5g -t aix /vol/ibm_p720/crs03 lun create -s 100g -t aix /vol/ibm_p720/data01 lun create -s 100g -t aix /vol/ibm_p720/data02 lun create -s 100g -t aix /vol/ibm_p720/data03 lun create -s 898g -t windows /vol/chjbak/chjbak01 lun create -s 2048g -t windows_2008 /vol/image/image01 lun create -s 400g -t windows_2008 /vol/image/image02
5, lun map lun_path initialtor_group/alias_name
n6060a> fcp wwpn-alias show wwpn alias ---- ----- 10:00:00:90:fa:09:34:87 198.0.0.221 10:00:00:90:fa:09:37:de 198.0.0.222 10:00:00:90:fa:09:35:b6 198.0.0.223 10:00:00:00:c9:88:9b:4b ibm_p720a 10:00:00:00:c9:7a:14:35 ibm_p720b 10:00:00:00:c9:e0:b0:12 198.0.0.10 21:00:00:1b:32:90:4e:63 198.0.0.152 lun map /vol/ibm_p720/crs01 ibm_p720 lun map /vol/ibm_p720/crs02 ibm_p720 lun map /vol/ibm_p720/crs03 ibm_p720 lun map /vol/ibm_p720/data01 ibm_p720 lun map /vol/ibm_p720/data02 ibm_p720 lun map /vol/ibm_p720/data03 ibm_p720 lun map /vol/image/image01 198.0.0.10 lun map /vol/image/image02 198.0.0.10
notes
- sysconfig -a : shows hardware aggr status aggr status -r aggr show_space vol status -s vol status -r lun stats
test failover works
1, cf takeover
2, cf status filer x has taken over filer y.
3, cf status filer x is ready for giveback. partner ifconfig -a partner vfiler status
4, vol status
- aggr status
n6060b(takeover) partner
- vol status aggr status
cf giveback cf giveback -f
simulator download
http://mysupport.netapp.com/now/cgi-bin/simulator
7 mode vs cluster mode
最开始的ｄata ontap 借鉴了最早的开源unix之一的bsd net/2许多代码，包括 tcp/ip 堆栈、启动代码、设备驱动等，后来的data ontap也从其他的开源unix借鉴了大量的代码。至于命令行接口是netapp仿unix独立开发的,另外wafl文件系统与raid代码及磁盘子系统为netapp自己开发的所以与unix的完全不同。
一开始dataontap没有什么mode之分的，netapp收购了spinnaker之后基于freebsd把dataontap与spinnaker的软件重新整合出另一个叫data ontap gx的操作系统来，当data ontap更新至8.0版本后，netapp统一了二者的版本号,并把原生的dataontap称为7 mode, 后来的data ontap gx则称为 cluster mode,简称为c mode。
由于新的dataontap cluster mode功能一直不够完善，netapp一直同时开发着7 mode 和cluster mode两个操作系统，不过随着netapp大力推广和开发cluster mode，相信很快就会停止开发7 mode只有cluste mode了。目前（data ontap 8.1.1）二者功能上的区别如下：
cluster-mode only
−clustered scaleout (24-nas: 4-san) （多节点集群，如果提供san则一个集群最多4个节点）
−namespace （统一命名空间）
−nondisruptive operations （节点间平滑迁移volume或lun）
−management as single system （统一管理整个集群）
−scalable and integrated multi-tenancy （可扩展及多租户）
−nfs v4, v4.1 (pnfs); smb 2.0, 2.1
−onboard antivirus
7-mode only −snaplock® −snapvault® and ossv −qtree and synchronous snapmirror −metrocluster™ −vfiler® −flexshare® −ipv6, http, ftp, sftp, tftp both 7-mode and cluster-mode −unified architecture −storage efficiency features 和（重复数据删除与压缩） −snapshot™ copies and asynchronous volume snapmirror® −intelligent caching with flash cache
oncommand
http://mysupport.netapp.com/now/cgi-bin/software/ http://community.netapp.com/t5/oncommand-storage-management-software-discussions/operations-manager-core-free-license-available/td-p/61964
how to determine the disk and shelf firmware version on a controller and verify it is up to date
https://kb.netapp.com/index?page=content&id=1010762&actp=list_popular https://kb.netapp.com/support/index?page=content&id=1011673&actp=list_recent
iops calc
the shot analysis of netapp fas8040 (2-node, c-mode) spc-1 results | storage news:
perfstat
- enable rsh
options rsh.enable on
Hi,
These are the commands I use to troubleshoot performance issues:
always start with "priv set diag"
sysstat -M -i 5
--> already explained
sysstat -x 5
--> shows you the different I/O ("Disk util" is an importend one and also "CPty" see
http://now.netapp.com/NOW/knowledge/docs/ontap/rel707/html/ontap/cmdref/man1/na_sysstat.1.html)
lun stats -i 5
--> shows you the read / write / latency's of luns
stats show lun
--> shows you detailed info of every lun (you will want to capture this in an output file)
stats show volume
--> same as lun but now for the volumes (you will want to capture this in an output file)
reallocate status
--> shows if any reallocation jobs are running (walf scan status shows you even more info)
If this is not enough you can get some info with statit
a "statit -b" will start the data collection (wait a few minutes)
a "statit -e" will stop the collection and will give you the result. (you will want this to capture in an
output file)https://latx.netapp.com/summary/id/323525
upgrade shelf disk firmware
re: understanding aggregate and lun
netapp ds4243, ds4246 and ds2246 sas storage shelf experiences a spurious id change
generally it requires either a power cycle of the shelf or a new esh module. either one requires a downtime.
netapp ds4243, ds4246 and ds2246 sas storage shelf experiences a spurious id change (kb alerts) - kamazoy knowledge books - it support in birmingham:
netapp knowledgebase - how to power down and power up the controllers in a 7-mode ha-pair:
flash pool setting
aggr create aggr_hybrid -t raid_dp -t sas -n 18 -r 18 aggr option aggr_hybrid hybrid_enabled on aggr add aggr_hybrid -t ssd
priority hybrid-cache set aggr_hybrid read-cache=random-read priority hybrid-cache set aggr_hybrid write-cache=random-write
differences between netapp flash cache and flash pool
https://bitpushr.wordpress.com/2013/07/30/differences-between-netapp-flash-cache-and-flash-pool/
performance tunning
calculating queue depth
https://library.netapp.com/ecmdocs/ecmp12458217/html/guid-a055b184-0876-4376-9c75-35fe8c9be832.html
san configuration limits
https://library.netapp.com/ecmdocs/ecmp1196793/html/guid-f664a5db-cab3-43fb-9e0a-6e61aeaf8466.html
how to create and use flash pool
flash pool is a new feature in data ontap 8.1.1. basically, it is a pool of solid state disks (ssd) plus either sata or sas disks (but not both sata and sas in the same pool).
reate a flash pool
- flash pool is implemented in the data ontap aggregate layer. to construct a flash pool, you use the follow three steps and in that order.
- create a 64-bit aggregate using either sata or sas hard drives as usual (see figure 1)
* aggr create fpaggr -b 64 -t raid_dp -t sata -r 16 16
- enable the aggregate option hybrid_enabled as shown in figure 2
* aggr options fpaggr hybrid_enabled on
- add ssds into the aggregate created in step 1 above (figure 3)
* aggr add fpaggr -t ssd 6
use the flash pool
vol create myvol fpaggr 1t
ur setting
aggr create aggr_hybrid -t raid_dp -t sas -n 18 -r 18 aggr option aggr_hybrid hybrid_enabled on aggr add aggr_hybrid -t ssd priority hybrid-cache set aggr_hybrid read-cache=random-read priority hybrid-cache set aggr_hybrid write-cache=random-write
differences between netapp flash cache and flash pool
https://bitpushr.wordpress.com/2013/07/30/differences-between-netapp-flash-cache-and-flash-pool/
Troubleshooting
received NHT health trigger
Disk 0a.14.23 received NHT health trigger (0x1 0xb 0x5d 0x10)
solution
disk maint start -d 3a.14.13
This will copy the data to a spare, then run tests
if ok, it will make the disk a spare, if not it will fail it.
* In the end the disk failed and was replaced.
aggr status -r aggrXX
* Once the disk copy is complete, run:
disk maint status
Replace disk
displays the failed disks on the filer:
vol status -r
Yes, you are correct, if disk is in showing in failed disk, then its good to remove the disk. If you failed it manully then you can again unfail the disk. below is the setps.
failed the disk (disk failed <disk name>)
remove the failed disk ( disk remove <disk name>)
if you want this disk again which you failed manully ( use the command disk unfail <disk name>)
If physicall want to see which disk then umber the light (blink_on <disk name>)
aggr status
- Find the disk ID of the failed disk by entering the following command:
- aggr status -f
FCP wwn
# storage port show -node clusterB-02 -port 2a # storage bridge show grep -B 13 'Switch Port' SYSCONFIG-A.txt | egrep 'FC Node Name|FC Port Name|FC Host Adapter|Fibre Channel Target Host Adapter|FCVI Host Adapter|Switch Port|FC Nodename|FC Portname' $ pwd /mnt/play/Downloads/Oupai-logs/10.10.98.215