Disk space populating as "0" for Linux Server using Linux OS PatternsDescriptionWhile the discovery on the Linux Servers the payload received have the Disk information from "fdisk" command but the Pattern failed to update the payload information to "disk_space" filed.Steps to Reproduce Log in to the instanceExecute Discovery on any of the Linux ServerOnce the Discovery get completed and verify the created/updated Linux CIObserv the "Disk Space" populated with 0Verify the Discovery Pattern log for Step - 13.28 "Get Fdisk" ("sudo fdisk -l | grep 'Disk /'") >> It should have the output like below 2020-05-29 08:41:35: Executing SSH command: sudo fdisk -l | grep 'Disk /'2020-05-29 08:41:35: Command result:Disk /dev/sda: 107.4 GB, 107374182400 bytesDisk /dev/sdb: 107.4 GB, 107374182400 bytesDisk /dev/mapper/system-root: 2013 MB, 2013265920 bytesDisk /dev/mapper/system-tmp: 2113 MB, 2113929216 bytesDisk /dev/mapper/system-var: 2113 MB, 2113929216 bytesDisk /dev/mapper/system-var--log: 4194 MB, 4194304000 bytesDisk /dev/mapper/system-usr: 5268 MB, 5268045824 bytesDisk /dev/mapper/system-opt: 197.0 GB, 196998070272 bytes Step 13.119 "Update total disk space on Linux CI" >> It should have the output like below updating 0 2020-05-29 08:41:35: setAttribute(cmdb_ci_linux_server[*].disk_space,0.00)2020-05-29 08:41:35: setAttribute(cmdb_ci_linux_server) Cause Disk Space is sum of total space of the below tables, where type is not [cd, cdrom, ram, removal, logical]. cmdb_ci_storage_devicecmdb_ci_diskcmdb_ci_fc_diskcmdb_ci_iscsi_disk While debugging it was observed that the logic using the wrong method to parse the JSON response for storage devices table, and most of the tables don't have data in them at the stage when Discovery traversing over the record to calculate the some.WorkaroundPlease import the XML "sa_pattern_303407279f2032001d753758442e708c.xml" as a workaround. This problem is currently under review. You can contact ServiceNow Technical Support or subscribe to this Known Error article by clicking the Subscribe button at the top right of this form to be notified when more information will become available.Related Problem: PRB1409579