Technical Support Bulletins

EXAScaler NSDS Hotfix Addresses NFS Export Issues (SPT-TSB-0177)

NFS export in NSDS can become unresponsive due to issues with NFS lock reclaim and fails to read Lustre project quotas. These issues are addressed in Hotfix-3 for EXAScaler 6.3.0 NSDS (NFS and Samba Data Services). This fix supersedes all previous versions of NSDS for EXAScaler 6.3.0.

Drive Firmware Update Advisory June 2024 (SPT-TSB-0178)

Firmware updates for 19 drives were qualified by DDN Engineering from April to June 2024. Drive firmware updates are never merely cosmetic. Customers are strongly advised to update their drive firmware promptly.

Affected product IDs and firmware versions are listed in the bulletin, along with instructions for how to determine which drives are installed in your DDN storage system. Affected customers should contact DDN Support for updated firmware and an update plan.

Unreadable Data on WDC Ultrastar DC SN840 SSDs (SPT-TSB-0171)

If a certain error occurs on Western Digital Ultrastar DC SN840 SSDs running firmware versions prior to R2210401, a watchdog timer will trip and all data on the drive will become permanently unreadable. Contact DDN Support immediately to obtain a firmware update.

IntelliFlash SES Firmware Issue May Disrupt Access to Drives (SPT-TSB-0174)

In uncommon circumstances involving heavy workloads, IntelliFlash access to 6, 12, or all 24 NVMe drives may be unexpectedly lost, due to to a SES firmware bug. The fix requires field upgrade of the SES and BMC firmware under DDN Support TSE supervision, as well as upgrade to IntelliFlash OS 3.11.6.2 or later.

See the full text of the TSB for details and data access recovery instructions.

Hotfix Addresses Multiple Issues in EXAScaler NSDS 6.3.0 (SPT-TSB-0175)

Hotfix 6.3.0-1 addresses the following issues in EXAScaler NFS and Samba Data Services (NSDS) 6.3.0:

– A clock sync issue prevents automatic NSDS startup after reboot
– The NFS configuration file parser fails to parse duplicate blocks
– The NFS configuration file parser incorrectly quotes IP address prefixes or any
string with a forward slash (“/”)
– Authentication creation fails on passwords that contain a dollar sign (“$”)

See the full text of the TSB for details and installation instructions.

EXAScaler CSI Driver Issue May Put Data at Risk (SPT-TSB-0173)

Upgrade the EXAScaler CSI driver for Kubernetes to version 2.2.3 immediately. Failure to update the driver may result in degraded functionality or data loss.

Contact DDN Support to obtain updated driver code and an upgrade plan.

Hotfix for IP Address Issue in EXAScaler NFS-SMB Data Services 5.2.8

In EXAScaler NSDS 5.2.8, the “stop nsds” command handles a public IP address incorrectly, causing connectivity issues for EXAScaler clients. A hotfix for this issue is available now from DDN Support.

Hotfix for EXAScaler Monitoring Issue In DDN Insight 4.4.1 (SPT-TSB-0168)

Data for the EXAScaler 6.2 capacity and performance widgets do not display in the DDN Insight 4.4.1 GUI. A hotfix for this issue is available now from DDN Support.

Drive Firmware Update March 2024 (SPT-TSB-0172)

19 drive firmware updates from Kioxia, Toshiba, & Western Digital became available for DDN storage products from December 2023 through March 2024. Drive firmware updates are never merely cosmetic. Affected customers should contact DDN Support for the latest firmware and an upgrade plan.

EXAScaler User Namespace Security Exploit (SPT-TSB-0166)

Due to a combination of factors involving the user namespace feature, EXAScaler users can gain access to files or folders in the Lustre filesystem that they do not have permission to access based on their user or group ID. This can lead to potential data compromise or privilege escalation. This security vulnerability is identified as CVE-2023-51786 in the U.S. NIST National Vulnerability Database.

This TSB explains how to determine whether your installation is affected and how to obtain a patch for it from DDN. All clients or all servers on the affected EXAScaler storage network must be upgraded to remove this security risk.

Patches are available now. Customers should contact DDN Support to obtain a patch and upgrade plan.