ENABLE READ ONLY FOR AN ENCLOSURE WITH DMP

Question

Hello,

I have a media server where the disks belonging to a specific enclosure are misbehaving. Their response times are extremely high using vxdmpadm iostat and i can also see from the OS logs that they are faulty.

How can i just disable writes to those disks.

I dont want to to completely disable the enclosure as we have data on it that may be used for restore purposes so we need to keep read access to it.

&nbsp;

rsharma1 · Accepted Answer

There is no option to allow only reads from potenially bad luns. You may only disable specific paths or all paths for a lun (vxdmpadm disable path=&lt;pathname&gt;).

Also, you may consider Removing and Replacing the failing Disks

&nbsp;

riaanbadenhorst · Answer

Best you backup the data using a decent backup solution. Keeping information on some faulting disk is not a restoration solution. The day that you'll need the data would probably be the day that those disk finally fail completely.
	&nbsp;

marianne · Answer

Unmount the filesystem and then mount it as read-only.

If applications and users are supposed to write to the volume/filesystem, be prepared for a flood of complaints and error messages.

Rather log a call with array vendor.

kwakou · Answer

hi, Great idea, Mariane.

unfortunately we mix different arrays within the same filesystem.

vxdmpadm listenclosure all
	ENCLR_NAME &nbsp; &nbsp; &nbsp; &nbsp;ENCLR_TYPE &nbsp; &nbsp; ENCLR_SNO &nbsp; &nbsp; &nbsp;STATUS &nbsp; &nbsp; &nbsp; ARRAY_TYPE &nbsp; &nbsp; LUN_COUNT &nbsp; &nbsp;FIRMWARE
	===================================================================================================
	ds5100_ds5300-0 &nbsp; DS5100_DS5300- &nbsp;600A0B8000479814000000004C5C1B60 &nbsp;CONNECTED &nbsp; &nbsp;A/PF-LSI &nbsp; 10 &nbsp; &nbsp; &nbsp; &nbsp; 0730
	v_ibm_ds8x001 &nbsp; &nbsp; V_IBM_DS8x00 &nbsp; 75WG321 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;CONNECTED &nbsp; &nbsp;A/A &nbsp; &nbsp; &nbsp; &nbsp; 1 &nbsp; &nbsp; &nbsp; &nbsp; 0001
	storwizev70000 &nbsp; &nbsp;StorwizeV7000 &nbsp;0200a0438080XX00 &nbsp; &nbsp; CONNECTED &nbsp; &nbsp;A/A &nbsp; &nbsp; &nbsp; &nbsp;87 &nbsp; &nbsp; &nbsp; &nbsp; 0000
	ibm_ds8x000 &nbsp; &nbsp; &nbsp; IBM_DS8x00 &nbsp; &nbsp; 75VF301 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;CONNECTED &nbsp; &nbsp;A/A &nbsp; &nbsp; &nbsp; &nbsp;13 &nbsp; &nbsp; &nbsp; &nbsp; .133
	v_ibm_ds8x000 &nbsp; &nbsp; V_IBM_DS8x00 &nbsp; 75VF301 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;CONNECTED &nbsp; &nbsp;A/A &nbsp; &nbsp; &nbsp; &nbsp; 3 &nbsp; &nbsp; &nbsp; &nbsp; 0001

&nbsp;

the one i wanted to disabled for writes was the DS5K. the others are fine.

thanks.

&nbsp;

kwakou · Answer

Hello Riaan,

thanks for your good advice.

I will start planning for that from today.

&nbsp;

Forum Discussion

ENABLE READ ONLY FOR AN ENCLOSURE WITH DMP

5 Replies

Related Content

Unable to display enclosure name under the enclosure in VEA for array FUJITSU ETERNUS4000

Create Read Only User

network read failed(42)

file read failed(13)

Pathways to Enablement has

Recent Discussions

DataDomain To StoreOnce Migration

VCS ERROR V-16-1-10205 Group Mediation_NFS is faulted on system com1em03

vxprivutil

URGENT disk oublic region recover

super block corrupt