EXAScaler

KLA​

Finding a nano-scale needle in a peta-scale haystack with “Virtual Inspector” to quickly detect anomalies in the chip manufacturing process​

Helmholtz Munich

Helmholtz Munich consolidates research data and accelerates AI-driven discoveries with DDN EXAScaler to deliver concrete benefits to society and human health.

Helmholtz Munich Success Story

Helmholtz Munich consolidates research data and accelerates AI-driven discoveries with DDN EXAScaler to deliver concrete benefits to society and human health.

DDN Storage Solutions for KX Systems

DDN parallel storage improves on traditional approaches to simultaneously reduce complexity, drive down cost and improve performance as data datasets grow.

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…

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…

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…

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…

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.

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…

EXAScaler Directory Striping Limitation & Workaround (SPT-TSB-0152) (UPDATE)

If directory striping is enabled on a directory, the large directory feature must also be enabled to avoid severe issues with performance, function, or system stability. This TSB UPDATE revises…

Mellanox HCA Queue Pairs Become Stuck in Certain EXAScaler Configurations (SPT-TSB-0154)

Downgrade of HCA firmware on all nodes in the EXAScaler cluster is mandatory. Contact DDN Support for assistance.

EXAScaler Log Agent Simplifies Support Log Collection (SPT-TSB-0155)

The free EXAScaler Log Agent (es_log_agent) replaces DDN Collect for EXAScaler customers.

LFS Migrate Not Compatible with EXAScaler Metadata, Hot Pools (SPT-TSB-0149)

Some normal uses of lfs_migrate may put EXAScaler data integrity at risk. See bulletin for further information.

S3 Data Services Object File Sync Issue on Reboot (SPT-TSB-0144)

System reboot may cause data synchronization issues between the local S3 Data Services container storage and mounted EXAScaler file systems.

File Size Reporting Bug Can Put EXAScaler Hot Pools Data at Risk (SPT-TSB-0146)

A file size handling bug in the Lustre kernel can put data at risk in EXAScaler files using the hot pools feature.

EXAScaler MDS Crash Triggered by DDN Insight Use of Stratagem (SPT-TSB-0143)

See bulletin for workaround instructions.

Samba Security Issues Affect EXAScaler NFS/SMB Data Services

Security issues in Samba can break authentication, inject code into long DCE/RPC messages, and force root takeover by Active Directory. Workarounds are provided.

EXAScaler Loss of ARP Network Settings for Multi-Rail on Reboot (SPT-TSB-0132)

Workaround provided, or upgrade to latest version of EXAScaler.

Collectd Version Impacts EXAScaler Performance and Stability (SPT-TSB-0129)

Install most recent Collectd daemon or upgrade EXAScaler.

EXAScaler Log Rotation Issue Prevents Log Data Collection (SPT-TSB-0127)

LNET Timeouts Cause EXAScaler File System Mount Failures After Reboot (SPT-TSB-0126)

EXAScaler 5.x Not Tested on Older SFA14K Block Models (SPT-TSB-0120)

Contact DDN Support before installing on non-X block models of SFA14K.

NFS SMB Data Services 1.1.0 Patch 1 for EXAScaler Mandatory for New Installs

LNet Health May Spam Server Logs in EXA5 (SPT-TSB-0101 3/2020)

File Layout and Metadata Changes in EXA5 (SPT-TSB-0102 3/2020)

EXAScaler Security Issue with Files Created in SGID Directories (7/19)

Virtio Issue Slows EXAScaler Performance (05/19)

Virtio is an industry-standard virtualization technology for high-speed, scalable I/O transport among virtual machines and virtualized storage, network, and I/O devices. SFA OS adopted this technology as part of the design transition to declustered RAID in SFA OS 11.1 and higher. EXAScaler added support for virtio with its support for SFA OS 11.1 in EXAScaler 4.0.

Expired Certificate Prevents Log Upload by DDN Collect and EXAScaler es-log-agent

Fix and work-around provided.

Mandatory SFA Block Driver Update For Embedded File Systems ( 08/17 )

SFA OS 3.1.0.1 (Bova) Now Supports More Versions Of GRIDScaler And EXAScaler ( 02/17 )

DDN Solution Upgrades Resolve Shellshock BASH Bug ( 11/14 )